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j_195g presentation.pdf
1.
19-1 ©2016 Raj Jain http://www.cse.wustl.edu/~jain/cse574-16/ Washington
University in St. Louis Introduction to 5G Introduction to 5G Raj Jain Washington University in Saint Louis Saint Louis, MO 63130 Jain@cse.wustl.edu Slides and Audio/Video recordings of this class lecture are available at: http://www.cse.wustl.edu/~jain/cse574-16/
2.
19-2 ©2016 Raj Jain http://www.cse.wustl.edu/~jain/cse574-16/ Washington
University in St. Louis Overview Overview 1. What: 5G Definition 2. How: 1. New Radio Multiplexing Technologies 2. New Efficient Spectrum Usage Techniques 3. New Energy Saving Mechanisms 4. CapEx/OpEx Reduction Techniques 5. New Spectrum 6. Application Specific Improvements Note: This is the 4th module in a series of lectures on 2G/3G, LTE, LTE-Advanced, and 5G
3.
19-3 ©2016 Raj Jain http://www.cse.wustl.edu/~jain/cse574-16/ Washington
University in St. Louis 5G Definition 5G Definition Ref: ITU-R Recommendation M.2083-0, "IMT Vision – Framework and overall objectives of the future development of IMT for 2020 and beyond," Sep. 2015, 21 pp., https://www.itu.int/dms_pubrec/itu-r/rec/m/R-REC-M.2083-0-201509-I!!PDF-E.pdf 4G 100× 10× 10× 1.4× 10× 20×
4.
19-4 ©2016 Raj Jain http://www.cse.wustl.edu/~jain/cse574-16/ Washington
University in St. Louis 5G Definition (Cont) 5G Definition (Cont) 1. Peak Data Rate: max rate per user under ideal conditions. 10 Gbps for mobiles, 20 Gbps under certain conditions. 2. User experienced Data Rate: Rate across the coverage area per user. 100 Mbps in urban/suburban areas. 1 Gbps hotspot. 3. Latency: Radio contribution to latency between send and receive 4. Mobility: Max speed at which seamless handover and QoS is guaranteed 5. Connection Density: Devices per km2 6. Energy Efficiency: Network bits/Joule, User bits/Joule 7. Spectrum Efficiency: Throughput per Hz per cell 8. Area Traffic Capacity: Throughput per m2
5.
19-5 ©2016 Raj Jain http://www.cse.wustl.edu/~jain/cse574-16/ Washington
University in St. Louis Importance Importance Three Key Application Areas: Enhanced Mobile Broadband Ultra-Reliable and Low Latency: Real-time, safety Massive Machine Type Communications Ref: ITU-R Recommendation M.2083-0, "IMT Vision – Framework and overall objectives of the future development of IMT for 2020 and beyond," Sep. 2015, 21 pp., https://www.itu.int/dms_pubrec/itu-r/rec/m/R-REC-M.2083-0-201509-I!!PDF-E.pdf
6.
19-6 ©2016 Raj Jain http://www.cse.wustl.edu/~jain/cse574-16/ Washington
University in St. Louis Timeline Timeline 3G: IMT-2000 started in 1985, first release in 2000 4G: IMT-Advanced, vision in 2003, First release in 2012 5G: IMT-2020, vision in 2015, first release in 2020 Ref: ITU-R, “Workplan, timeline, process and deliverables for the future development of IMT,” 4pp., 5 years 2020 2018 2017 2016 2015 2014 2019 3GPP 2012 2003 2000 1985 … … … … Year Deployment Of IMT-2020 Development Of IMT-2020 Development Of IMT-2020 Deployment Of IMT-2020 Development Of IMT-2020 Vision Of IMT-2020 Vision Of IMT-Adv Deployment Of IMT-Adv Development Of IMT-2000 Deployment Of IMT-2000 3G 4G 5G R16 R15 R14 R13 9 years 15 years Development Of IMT-Advanced
7.
19-7 ©2016 Raj Jain http://www.cse.wustl.edu/~jain/cse574-16/ Washington
University in St. Louis How? How? 1. New Radio Multiplexing Technologies 2. New Efficient Spectrum Usage Techniques 3. New Energy Saving Mechanisms 4. CapEx/OpEx Reduction Techniques 5. New Spectrum 6. Application Specific Improvements
8.
19-8 ©2016 Raj Jain http://www.cse.wustl.edu/~jain/cse574-16/ Washington
University in St. Louis New Radio Multiplexing Technologies New Radio Multiplexing Technologies 1. Spectrum Filtered OFDM (f-OFDM) 2. Filtered Bank Multicarrier (FBMC) 3. Non-Orthogonal Multiple Access (NOMA) 4. Pattern Division Multiple Access (PDMA) 5. Low Density Spreading (LDS) 6. Sparse Code Multiple Access (SCMA) 7. Interleave-Division Multiple Access (IDMA)
9.
19-9 ©2016 Raj Jain http://www.cse.wustl.edu/~jain/cse574-16/ Washington
University in St. Louis Problems with OFDM Problems with OFDM Spectrum overflow Need guard bands Entire band should use the same subcarrier spacing Entire time should use the same symbol size and cyclic prefix All users should strictly time synchronize in the uplink Ref: P. Zhu, “5G Enabling Technologies,” PIMRC, Sep 2014, 20 slides, http://www.ieee-pimrc.org/2014/2014-09-03%205G%20 Enabling%20Technologies%20PMIRC%20Huawei_Final.pdf
10.
19-10 ©2016 Raj Jain http://www.cse.wustl.edu/~jain/cse574-16/ Washington
University in St. Louis Spectrum Filtered OFDM (f Spectrum Filtered OFDM (f- -OFDM) OFDM) Band divided into multiple subbands Each subband may use different OFDM parameters optimized for the application: Frequency spacing, cyclic prefix, … Each subband spectrum is filtered to avoid inter-subband interference Spectrum filtered Different users (subbands) do not need to be time synchronized Asynchronous OFDMA Time Frequency Subband 1 with spacing = 10 MHz Subband 1 with spacing = 6 MHz Subband 1 with spacing = 15 MHz OFDM 1 OFDM 2 OFDM 3 Ref: P. Zhu, “5G Enabling Technologies,” PIMRC, Sep 2014, 20 slides, http://www.ieee-pimrc.org/2014/2014-09-03%205G%20 Enabling%20Technologies%20PMIRC%20Huawei_Final.pdf Filter
11.
19-11 ©2016 Raj Jain http://www.cse.wustl.edu/~jain/cse574-16/ Washington
University in St. Louis Filtered Bank Multicarrier (FBMC) Filtered Bank Multicarrier (FBMC) A filter is used to remove the subcarrier overflow No side lobes No cyclic prefix needed More bits/Hz Different users can have different subbands with different parameters Frequency Amplitude Amplitude Frequency Ref: M. Bellanger, “FBMC physical layer – principle,” June 2011, 13 slides, http://www.cept.org/Documents/se-43/500/SE43(11)Info06_FBMC-physical-layer-principle
12.
19-12 ©2016 Raj Jain http://www.cse.wustl.edu/~jain/cse574-16/ Washington
University in St. Louis Non Non- -Orthogonal Multiple Access (NOMA) Orthogonal Multiple Access (NOMA) Users are distinguished by power levels Users with poor channel condition get higher power Users with higher power decode their signal treating others as noise Users with lower power subtract the higher powered signals before decoding Can also be used with beamforming and MIMO User 1 subtracts signal of user 2 then decodes User 2 decodes its signal Considers user 1’s signal as noise Ref: G. Ding, et al, “Application of Non-orthogonal Multiple Access in LTE and 5G Networks,” https://pdfs.semanticscholar.org/a404/21a9762db528bfe848166765fee43e740c94.pdf
13.
19-13 ©2016 Raj Jain http://www.cse.wustl.edu/~jain/cse574-16/ Washington
University in St. Louis Pattern Division Multiple Access (PDMA) Pattern Division Multiple Access (PDMA) A variation of NOMA The users detect the signal with highest signal, subtract its waveform Successive Interference Cancellation (SIC) Can increase spectral efficiency by a factor between 1 and 2. Received Signal UE1 Decoder UE2 Decoder UE1 Signal UE2 Signal UEn Signal UE1 Transfer fn UE2 Transfer fn UEn Decoder UEn Decoder UEn Decoder Ref: J. Zeng, et al, "Pattern Division Multiple Access (PDMA) for Cellular Future Radio Access," Intl Conf on Wireless Comm & Signal Proc (WCSP), Oct. 2015, 5 pp., http://ieeexplore.ieee.org/xpl/login.jsp?tp=&arnumber=7341229
14.
19-14 ©2016 Raj Jain http://www.cse.wustl.edu/~jain/cse574-16/ Washington
University in St. Louis Low Density Spreading (LDS) Low Density Spreading (LDS) Direct Sequence-CDMA: Symbols are spread in time. Multiple users spread over at same time and frequency. Multi-carrier CDMA: Symbols are spread in frequency. Multiple users spread over same subcarriers at same time. LDS: Multi-carrier CDMA in which symbols are spread over large vectors most of whose elements are zero (sparse). At each subcarriers, the number of interferers is small Codes can even be randomly chosen Input and the output are multi-bit symbols and complex numbers. 1 1010 DS-CDMA 1 0 1 0 1 MC-CDMA time Frequency (0,0)=x+iy (0,1)=-x+iy (1,1)=-x-iy (1,0)=x-iy 1 0 1 0 0 0 0 (0,1) -x+iy -x+iy 1 0 1 0 0 0 0 1 LDS Ref: M. AL-imari, et al., “Low Density Spreading Multiple Access,” J. Inform Tech Software Eng, Vol 2, Issue 4, 2012, http://epubs.surrey.ac.uk/788182/1/Ready%20to%20Upload.pdf
15.
19-15 ©2016 Raj Jain http://www.cse.wustl.edu/~jain/cse574-16/ Washington
University in St. Louis Sparse Code Multiple Access (SCMA) Sparse Code Multiple Access (SCMA) In stead of repeating the same symbol on different subcarriers (as in LDS), optimally coded symbols on different subcarriers. Symbols are mapped to higher-dimensional complex symbols and then mapped to subcarriers K dimensions are spread over K subcarriers Codes are non-orthogonal More code books and users can be supported than if limited to orthogonal Sparse A lot of zeros in the code book Easier to decode All codes in one codebook have zeros in the same location Each code book has K dimension of which N are zero. Total KCN = codebooks. Good for unscheduled random access without polling and grant scheduling Good for IoT SCMA combines spreading and coding Ref: P. Zhu, “5G Enabling Technologies,” PIMRC, Sep 2014, 20 slides, http://www.ieee-pimrc.org/2014/2014-09-03%205G%20 Enabling%20Technologies%20PMIRC%20Huawei_Final.pdf K N
16.
19-16 ©2016 Raj Jain http://www.cse.wustl.edu/~jain/cse574-16/ Washington
University in St. Louis SCMA Example SCMA Example 2-bit symbols to 4-dimensional symbols with 2 zeros: K=4, N=2 Number of possible mappings 4C2 = = 6 codebooks Six users can be supported over 4 subcarriers Each codebook has 2 zeros in the same rows for entire codebook. Combines spreading and coding 4 2 Spreading Encoder SCMA Ref: K. Au, et al, “Uplink Contention Based SCMA for 5G Radio Access,” http://arxiv.org/vc/arxiv/papers/1407/1407.5495v1.pdf 00 01 10 11 x1 x2 0 0 x3 x4 0 0 x5 x6 0 0 x7 x8 0 0 00 01 10 11 y1 0 y2 0 y3 0 y4 0 y5 0 y6 0 y7 0 y8 0 00 01 10 11 z1 0 0 z2 z3 0 0 z4 z5 0 0 z6 z7 0 0 z8 00 01 10 11 0 u1 u2 0 0 u3 u4 0 0 u5 u6 0 0 u7 u8 0 00 01 10 11 0 0 v1 v2 0 0 v3 v4 0 0 v5 v6 0 0 v7 v8 00 01 10 11 0 w1 0 w2 0 w3 0 w4 0 w5 0 w6 0 w7 0 w8 User 1 User 2 User 3 User 4 User 5 User 6 Subcarriers frequency x1 x2 0 0 x3 x4 0 0 x5 x6 0 0 x7 x8 0 0 00 01 10 11 y1 0 y2 0 y3 0 y4 0 y5 0 y6 0 y7 0 y8 0 00 01 10 11 z1 0 0 z2 z3 0 0 z4 z5 0 0 z6 z7 0 0 z8 x1 x2 0 0 x3 x4 0 0 x5 x6 0 0 x7 x8 0 0 00 01 10 11 y1 0 y2 0 y3 0 y4 0 y5 0 y6 0 y7 0 y8 0 00 01 10 11 0 u1 u2 0 0 u3 u4 0 0 u5 u6 0 0 u7 u8 0 00 01 10 11 z1 0 0 z2 z3 0 0 z4 z5 0 0 z6 z7 0 0 z8 x1 x2 0 0 x3 x4 0 0 x5 x6 0 0 x7 x8 0 0 00 01 10 11 y1 0 y2 0 y3 0 y4 0 y5 0 y6 0 y7 0 y8 0 00 01 10 11 0 0 v1 v2 0 0 v3 v4 0 0 v5 v6 0 0 v7 v8 00 01 10 11 0 u1 u2 0 0 u3 u4 0 0 u5 u6 0 0 u7 u8 0 00 01 10 11 z1 0 0 z2 z3 0 0 z4 z5 0 0 z6 z7 0 0 z8 x1 x2 0 0 x3 x4 0 0 x5 x6 0 0 x7 x8 0 0 00 01 10 11 y1 0 y2 0 y3 0 y4 0 y5 0 y6 0 y7 0 y8 0 00 01 10 11 0 w1 0 w2 0 w3 0 w4 0 w5 0 w6 0 w7 0 w8 00 01 10 11 0 0 v1 v2 0 0 v3 v4 0 0 v5 v6 0 0 v7 v8 00 01 10 11 0 u1 u2 0 0 u3 u4 0 0 u5 u6 0 0 u7 u8 0 00 01 10 11 z1 0 0 z2 z3 0 0 z4 z5 0 0 z6 z7 0 0 z8 x1 x2 0 0 x3 x4 0 0 x5 x6 0 0 x7 x8 0 0 00 01 10 11 y1 0 y2 0 y3 0 y4 0 y5 0 y6 0 y7 0 y8 0 x7 x8 0 0 y5 0 y6 0 z7 0 0 z8 0 u3 u4 0 0 0 v1 v2 0 w3 0 w4 11 10 11 01 00 01 + + + + + = x7+y7+z7 x8+u3+w3 y6+u4+v1 z8+v2+w4 xi, yi, …, wi are complex numbers Data Bits: Subcarriers QAM encoder Spread LDS
17.
19-17 ©2016 Raj Jain http://www.cse.wustl.edu/~jain/cse574-16/ Washington
University in St. Louis Interleave Interleave- -Division Multiple Access (IDMA) Division Multiple Access (IDMA) Interleaving: Rearranging symbols according to a specified pattern Reduces correlation between successive symbols DS-CDMA: Symbols are interleaved then spread in to chips IDMA: Symbols spread and then interleaved. Different users have different interleaving pattern Low-Rate Spreading ~ DS-CDMA without spreading High spectral efficiency Data Symbols Spreader Chips Interleaver Data Symbols Interleaver Spreader Chips [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1]× [2, 4, 3,1][1, 3, 2, 0, 5, 7, 6, 4, 9, 1, 0, 8] Ref: J. C. Fricke, et al, "An Interleave-Division Multiple Access Based System Proposal for the 4G Uplink," IST Summit, 2005, 5 pp., http://www.agilon.de/Dr__Hendrik_Schoneich/Publications/Fricke_IST_Summit_2005.pdf
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19-18 ©2016 Raj Jain http://www.cse.wustl.edu/~jain/cse574-16/ Washington
University in St. Louis New Efficient Spectrum Usage Techniques New Efficient Spectrum Usage Techniques 1. 3D Beamforming and Massive MIMO 2. FDD-TDD Carrier Integration 3. Distributed Antenna Systems (DAS) 4. Simultaneous Transmission and Reception 5. Dynamic TDD 6. License Assisted Access (LAA) 7. Multimode Base Stations 8. Intelligent Multi-Mode RAT Selection 9. Higher order modulations in small cells
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19-19 ©2016 Raj Jain http://www.cse.wustl.edu/~jain/cse574-16/ Washington
University in St. Louis 3D Beamforming 3D Beamforming Aka 3D-MIMO or Full-dimension MIMO (FD-MIMO) Infinite Antennas = Massive MIMO Ref: G. Xu, et al, “Full-Dimension MIMO: Status and Challenges in Design and Implementation,” May 2014, http://www.ieee-ctw.org/2014/slides/session3/CTW_2014_Samsung_FD-MIMO.pdf
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19-20 ©2016 Raj Jain http://www.cse.wustl.edu/~jain/cse574-16/ Washington
University in St. Louis FDD FDD- -TDD Carrier Integration TDD Carrier Integration Can aggregate Down FDD band with TDD in downlink Aggregate Up FDD band with TDD in uplink Use only FDD in Primary Cell and TDD in Small Cell or vice versa Generally FDD bands are lower frequency Used for primary In future, 32 carriers could be aggregated Paired FDD TDD
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19-21 ©2016 Raj Jain http://www.cse.wustl.edu/~jain/cse574-16/ Washington
University in St. Louis Distributed Antenna Systems (DAS) Distributed Antenna Systems (DAS) Multiple antennas connected via cable Used for indoor coverage Need multiple cables for MIMO Some times the RF signal is converted to digital and transmitted over fiber optic cables and converted back to RF Active DAS
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19-22 ©2016 Raj Jain http://www.cse.wustl.edu/~jain/cse574-16/ Washington
University in St. Louis Simultaneous Transmission and Reception Simultaneous Transmission and Reception Also known as “Full Duplex” on the same frequency Doubles the throughput, reduces end-to-end latency, allows transmitters to monitor the channel Difficult because transmitted signal too strong and interferes with reception FDD (Large gap between transmit and receive frequencies) or TDD (Half-Duplex) Solution: Self-Interference cancellation (SIC) in analog and digital domain Similar techniques can be used to overcome BS-BS or UE-UE interference SIC can also be used in Multi-radio systems (WiFi and Bluetooth) BS-BS UE-UE Ref: W. Afifi and M. Krunz, "Adaptive Transmission-Reception-Sensing Strategy for Cognitive Radios with Full-duplex Capabilities," April 2010, 12 pp., http://www2.engr.arizona.edu/~wessamafifi/DySPAN14.pdf
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19-23 ©2016 Raj Jain http://www.cse.wustl.edu/~jain/cse574-16/ Washington
University in St. Louis Dynamic TDD Dynamic TDD Time Division Duplexing (TDD) allows varying uplink to downlink ratio All cells in an area must synchronize their UL/DL subframes pattern, otherwise mobile’s transmission get interference from neighboring BS LTE allows 7 variations of UL/DL subframe patterns. S=Switchover time from D to U Ref: V. Pauli, Y. Li, E. Seidel, "Dynamic TDD for LTE-A and 5G," Nomor Research GmbH, Sep 2015, 8 pp., http://nashville.dyndns.org:823/YourFreeLibrary/_lte/LTE%20advanced/WhitePaperNomor_LTE-A_5G-eIMTA_2015-09.pdf eNB eNB
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19-24 ©2016 Raj Jain http://www.cse.wustl.edu/~jain/cse574-16/ Washington
University in St. Louis Dynamic TDD (Cont) Dynamic TDD (Cont) Too many U’s or D’s in a row delay acks/nacks and affect the usefulness of HARQ. Release 12 added flexible “F” subframes that can be declared as S, D, or U Can change every 10 ms. Enhanced Interference Mitigation and Traffic Adaptation (eIMTA): Cells can change UL/DL pattern as needed. Mobiles asked to transmit at higher power if needed. This will be further enhanced for 5G
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19-25 ©2016 Raj Jain http://www.cse.wustl.edu/~jain/cse574-16/ Washington
University in St. Louis License Assisted Access (LAA) License Assisted Access (LAA) A.k.a. unlicensed LTE (LTE-U). Release 13. 5 GHz band for public hot-spots and in-building Different rules and bands in different countries, e.g., Avoid if a radar is operating Can’t block 20 MHz if using only 180 kHz Transmit only if free. Recheck after maximum occupancy time Can not transmit continuously as in standard LTE End-to-End LTE Better integration than with WiFi May use as a downlink-only carrier aggregation 5150 5350 5470 5725 5850 USA Europe/Japan China 200 mW or less 1W
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19-26 ©2016 Raj Jain http://www.cse.wustl.edu/~jain/cse574-16/ Washington
University in St. Louis Multimode Base Stations Multimode Base Stations 2G/3G/4G/WiFi/WiMAX, multi-band, multi-frequency, multiple modulation formats, multiple air interfaces Need “Software Define Radios (SDRs)” Analog signal is sampled at a very high rate and processed using digital signal processing (DSP) DAC, ADC, and PA are the most expensive parts Ref: I. S. Simic, "Evolution of Mobile Base Station Architectures," Microwave Review, Jun 2007, 6pp., http://www.mtt-serbia.org.rs/microwave_review/pdf/Vol13No1-07-ISimic.pdf RF Power Amplifier Analog-to-Digital Converter Digital-to-Analog Converter Circulator/ Switch Low Noise Amplifier Voltage Controlled Oscillator/ Direct Digital Synthesizer Tx/Rx Antenna Frequency Power Wideband Frequency Power Intermediate Frequency Frequency Power Baseband Intermediate Frequency Digital Signal Processing Baseband
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19-27 ©2016 Raj Jain http://www.cse.wustl.edu/~jain/cse574-16/ Washington
University in St. Louis Intelligent Multi Intelligent Multi- -Mode RAT Selection Mode RAT Selection Selecting between LTE, WiFi, 3G, … Can not just select Highest speed Highest signal power Cheapest Correct choice also depends upon the type of traffic: voice vs. data Network assisted selection Ref: 4G Americas, "Integration of Cellular and WiFi Networks," Sep 2013, 65 pp., http://www.4gamericas.org/files/3114/0622/2546/Integration_of_Cellular_and_WiFi_Networks_White_Paper-_9.25.13.pdf 2 Mbps DSL 600 Mbps 100 M bps
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19-28 ©2016 Raj Jain http://www.cse.wustl.edu/~jain/cse574-16/ Washington
University in St. Louis Hyper Hyper- -Dense Small Cells Dense Small Cells Used in extremely busy areas. Sports arena, Malls, Metro trains Heterogeneous and Small Cell Network (HetSNets) Self-Organizing: Neighbor discovery, parameter setting, Backhaul Flexibility: DSL, HomePlug, Wireless, … Mobility-Management: Frequent Handovers Mitigation: Ping-pong. Network assisted as in intelligent multi-mode RAT selection Forward Handover: Small cell can prefetch user context from the Serving cell Load balancing between small cells and with macro cell Multi-RAT Management: 2G/3G/4G/WiFi Privately Owned: Security and Incentive issues Ref: I. Hwang, B. Song, and S. S. Soliman, "A Holistic View on Hyper-Dense Heterogeneous and Small Cell Networks," IEEE Communications Magazine, Jun 2013, pp. 20-27, http://blog.sciencenet.cn/home.php?mod=attachment&id=62246 Data Rate Spectrum Spectral Efficiency Smaller Cell
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19-29 ©2016 Raj Jain http://www.cse.wustl.edu/~jain/cse574-16/ Washington
University in St. Louis New Energy Saving Mechanisms New Energy Saving Mechanisms 1. Discontinuous Transmission (DTX) 2. Antenna Muting 3. Cell on/off switching 4. Power Save Mode for IoT
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19-30 ©2016 Raj Jain http://www.cse.wustl.edu/~jain/cse574-16/ Washington
University in St. Louis Discontinuous Transmission (DTX) Discontinuous Transmission (DTX) Do not transmit during silence Resources can be reused by others Was difficult to do in static allocation like GSM Already part of LTE
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19-31 ©2016 Raj Jain http://www.cse.wustl.edu/~jain/cse574-16/ Washington
University in St. Louis Antenna Muting Antenna Muting Base stations have multiple antenna for MIMO Antenna Muting: Turn off some antenna at low load Advantage: Energy savings Problem: Number of antenna is assumed fixed and each antenna has its own pilot signals Space-Frequency Block Code (SFBC) is used to transmit different frequency components from different antenna Throughput reduces Studies have shown significant energy savings with acceptable loss in throughput at low load. In 5G number of Antenna will become dynamic Ref: P. Skillermark and P. Frenger, "Enhancing Energy Efficiency in LTE with Antenna Muting," 75th Vehicular Technology Conf. (VTC Spring), Yokohama, 2012, pp. 1-5, https://pdfs.semanticscholar.org/29ec/17e00ccae04ae34b74f9e6e62c1e2c42d789.pdf
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19-32 ©2016 Raj Jain http://www.cse.wustl.edu/~jain/cse574-16/ Washington
University in St. Louis Cell On/Off Switching Cell On/Off Switching Under low load a cell or small cell can be turned off Off cells broadcast “Discovery reference signals (DRS)” periodically so that they can be turned on if necessary Takes a few hundred ms Used for energy consumption during nights
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19-33 ©2016 Raj Jain http://www.cse.wustl.edu/~jain/cse574-16/ Washington
University in St. Louis CapEx/OpEx Reduction Techniques CapEx/OpEx Reduction Techniques 1. Software Defined Networking (SDN) 2. Network Function Virtualization (NFV) 3. Mobile Edge Computing (MEC) 4. Cloud Radio Access Network (C-RAN)
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19-34 ©2016 Raj Jain http://www.cse.wustl.edu/~jain/cse574-16/ Washington
University in St. Louis Software Defined Networking (SDN) Software Defined Networking (SDN) 1. Abstract the Hardware: No dependence on physical infrastructure. Software API. 2. Programmable: Shift away from static manual operation to fully configurable and dynamic 3. Centralized Control of Policies: Policy delegation and management Network Manager Policies Policies Controller Ref: D. Batista, et al, "Perspectives on software-defined networks: interviews with five leading scientists from the networking community" Journal of Internet Services and Applications 2015, 6:22, http://www.cse.wustl.edu/~jain/papers/jisa15.htm
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19-35 ©2016 Raj Jain http://www.cse.wustl.edu/~jain/cse574-16/ Washington
University in St. Louis MME RNC IMS Hardware Hardware Set Top Box CGNAT Residential Gateway Hardware MME RNC IMS Residential Gateway CGNAT Set Top Box MME RNC IMS MME RNC IMS Network Function Virtualization Network Function Virtualization Standard hardware is fast and cheap No specialized hardware Implement all functions in software Virtualize all functions Cloud Create capacity on demand Ref: Raj Jain, "SDN and NFV: Facts, Extensions, and Carrier Opportunities," AT&T Labs SDN Forum Seminar, April 10, 2014, http://www.cse.wustl.edu/~jain/papers/adn_att.htm
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19-36 ©2016 Raj Jain http://www.cse.wustl.edu/~jain/cse574-16/ Washington
University in St. Louis Mobile Edge Computing (MEC) Mobile Edge Computing (MEC) To service mobile users/IoT, the computation needs to come to edge Mobile Edge Computing Users Network Micro-Clouds Local Clouds Regional Clouds Ref: L. Gupta, R. Jain, H. Chan, "Mobile Edge Computing - an important ingredient of 5G Networks," IEEE Softwarization Newsletter, March 2016, http://sdn.ieee.org/newsletter/march-2016/mobile-edge-computing-an-important-ingredient-of-5g-networks
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19-37 ©2016 Raj Jain http://www.cse.wustl.edu/~jain/cse574-16/ Washington
University in St. Louis Cloud Radio Access Network (C Cloud Radio Access Network (C- -RAN) RAN) Centralize baseband processing in a cloud Need to carry high-bit rate signal (after A-to-D conversion) from tower to cloud site ~ 10 Gbps Optical fiber, 10 Gbps Ethernet, Microwave can be used depending upon the distance ~ 1-20 km of fronthaul Particularly good for dense small cells. Multi-provider support. Remote Radio Head Base Band Unit BBU RRH BBU RRH BBU RRH Evolved Packet Core RRH RRH RRH EPC BBU BBU BBU Distributed RAN Cloud RAN Ref: C. I, et al, "Recent Progress on C-RAN Centralization and Cloudification," IEEE Access, Vol. 2, 2014, pp. 1030-1039, http://ieeexplore.ieee.org/iel7/6287639/6514899/06882182.pdf?arnumber=6882182 Fronthaul
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19-38 ©2016 Raj Jain http://www.cse.wustl.edu/~jain/cse574-16/ Washington
University in St. Louis New Spectrum New Spectrum ITU estimates 900-1420 MHz required for 4G/5G by 2020 and 440-540 MHz required for 2G/3G and their enhancements Ref: ITU-R M.2290-0, “Future Spectrum Requirements estimate for Terrestrial IMT,” Dec 2013, http://www.itu.int/dms_pub/itu-r/opb/rep/R-REP-M.2290-2014-PDF-E.pdf Huawei, “White Paper on Spectrum,” February 2013, http://www.huawei.com/us/others/index-cdf_en_group_white_book.htm Ref: P. Zhu, “5G Enabling Technologies,” PIMRC, Sep 2014, 20 slides, http://www.ieee-pimrc.org/2014/2014-09-03%205G%20 Enabling%20Technologies%20PMIRC%20Huawei_Final.pdf 10 20 30 40 50 60 70 80 90 3 2 1 5 4 .5 IoT 20 km 1 Mbps Micro 100 m 10 Gbps Small 50 m 100 Gbps Macro 2 km 4 Gbps License-Exempt (Complementary) Licensed (Primary) GHz 100
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19-39 ©2016 Raj Jain http://www.cse.wustl.edu/~jain/cse574-16/ Washington
University in St. Louis Above 6 GHz Above 6 GHz Free-space loss increases in proportion to square of frequency and square of distance. 88 dB loss with 30 GHz at 20 m 10- 100 m cell radius Outdoor-to-Indoor: Glass windows add 20-40 dB Mobility: Doppler shift is proportional to frequency and velocity. Multipath results in varying Doppler shifts Lower mobility Wide Channels: Duplex filters cover only 3-4% of center frequency Need carrier aggregation. Antenna: 8x8 array at 60 GHz is only 2cm x 2cm. A/D and D/A converters per antenna element may be expensive 2 Gbps to 1 km is feasible using mm waves Ref: ITU-R M2376-0, “Technical Feasibility of IMT in bands above 6 GHz,” July 2015, http://www.itu.int/dms_pub/itu-r/opb/rep/R-REP-M.2376-2015-PDF-E.pdf
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19-40 ©2016 Raj Jain http://www.cse.wustl.edu/~jain/cse574-16/ Washington
University in St. Louis Application Specific Improvements Application Specific Improvements Internet of Things Video
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19-41 ©2016 Raj Jain http://www.cse.wustl.edu/~jain/cse574-16/ Washington
University in St. Louis LTE Applications LTE Applications Machine Type Communication (MTC): M2M or IoT Versus current Human Type Communication (HTC) GSM and HSPA modems for ~$5 are potential choices Extended Coverage GSM (EC-GSM): Half-duplex FDD, Power Saving Mode (Same as LTE), 20 dB enhancements in link budget (total 164 dB) in R13 7x range for low rate Device-to-Device (D2D): Proximity services (Nearby search), enable direct device-to-device communication if nearby. Low Latency D2D: Vehicular networking Group Communication: Public Safety (Fire, Police), push-to- talk Enhanced Multimedia Broadcast Multicast System (eMBMS): Broadcast Services (TV)
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19-42 ©2016 Raj Jain http://www.cse.wustl.edu/~jain/cse574-16/ Washington
University in St. Louis Machine Type Communication Machine Type Communication LTE Low-cast (Category 0) UE: In Release 12. Single Antenna Reduced peak rate up to 1 Mbps Half-Duplex No duplex filter Power saving mode (PSM) MTC LTE (LTE-M) (Category -1) UE: In Release 13. 1 Mbps using 1.4 MHz = 6 Physical Resource Blocks (PRB) All power on fewer subcarriers Power Spectral Density (PSD) Boosting 15 dB reduction in link budget by PSD and repetition Allows UEs in basements and indoors Reduced Tx power to 20 dBm integrated amplifier Narrow Band LTE (NB-LTE) introduced Category -2 UE: 128 kbps using 200 kHz band = Single PRB 23 dBm power (required to maintain the link budget) Both LTE-M and NB-LTE UEs use single RF chain
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19-43 ©2016 Raj Jain http://www.cse.wustl.edu/~jain/cse574-16/ Washington
University in St. Louis Signaling Enhancements for MTC Signaling Enhancements for MTC Enhanced Physical Downlink Control Channel (EPDCCH) LTE Cat 0 UE receive signaling in the entire 20 MHz band LTE-M UEs receive signaling in their 1.4 MHz band For NB-LTE UEs, signaling is part of the assigned PRB Control Enhanced Control (UE1) Enhanced Control (UE2) Data (UE2) 6 PRB Data (UE1) Control Enhanced Control (UE1) 1 PRB Data (UE1) Control 20 MHz LTE LTE-M NB-LTE
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19-44 ©2016 Raj Jain http://www.cse.wustl.edu/~jain/cse574-16/ Washington
University in St. Louis Power Saving Mode (PSM) Power Saving Mode (PSM) Discontinuous Reception (DRX). Introduced in Release 12 Allows UE to stay registered while sleeping UE’s need to monitor resource allocation channel even if it has nothing to send or receive Connected mode DRX (cDRX): UE can sleep and periodically wake up to check the control channel Short sleep cycle: 5 to 400 ms Long sleep cycle: 20 ms to 2.5s (if no activity for 4 short cycles) Active Sleep Short Long
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19-45 ©2016 Raj Jain http://www.cse.wustl.edu/~jain/cse574-16/ Washington
University in St. Louis Dynamic Adaptive Streaming over HTTP (DASH) Dynamic Adaptive Streaming over HTTP (DASH) Video is the major component of mobile traffic DASH provides an efficient method for video streaming Standard developed jointly by 3GPP, ISO, Open IPTV Forum Standard Web Servers: No changes required to servers, Content Distribution Networks (CDN), or HTTP protocol. HTTP passes easily through firewalls Mobile client controls what is downloaded using a “media presentation description (MPD)” file defined by DASH MPD contains URLs for segments Client requests segments as needed. Allows fast forward, rewind, etc. Ref: T. Stockhammer, "Dynamic Adaptive Streaming over HTTP – Standards and Design Principles," MMSys’11, Feb 2011, San Jose, CA, https://svn-itec.uni-klu.ac.at/trac2/dash/export/58/trunk/documentation/02%20mmt21da-stockhammer.pdf Segment Segment Segment Media HTTP Requests Client With DASH Engine MPD
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19-46 ©2016 Raj Jain http://www.cse.wustl.edu/~jain/cse574-16/ Washington
University in St. Louis Summary Summary 1. Current IMT Vision document defines 5G in terms of 8 parameters: a peak rate up to 20 Gbps per user, User experienced rate of 100 Mbps, spectral efficiency 3 times of 4G, Mobility support to 500 km/h, a latency of 1 ms, a density of a million connections per m2, energy efficiency 100x of 4G, and traffic capacity of 10 Mbps/m2. 2. New radio multiplexing techniques include f-OFDM, FBMC, NOMA, PDMA, LDS, SCMA, and IDMA 3. New spectrum utilization techniques include 3D Beamforming, Massive MIMO, FDD-TDD Carrier Integration, DAS, Simultaneous Transmission and Reception, Dynamic TDD, LAA, Multimode Base Stations, Intelligent Multi-Mode RAT Selection, and Higher order modulations in small cells 4. New energy savings mechanisms include Discontinuous Transmission (DTX), Antenna Muting, Cell on/off switching, and Power Save Mode for IoT 5. Capex/OpEx reduction techniques include SDN, NFV, MEC, and C-RAN. 6. Application specific improvements include LTE-M, NB-LTE for IoT and DASH for video. 7. New license-exempt spectrum in 6GHz-100 GHz will complement the licensed spectrum.
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19-47 ©2016 Raj Jain http://www.cse.wustl.edu/~jain/cse574-16/ Washington
University in St. Louis Reading List Reading List ITU-R Recommendation M.2083-0, "IMT Vision - Framework and overall objectives of the future development of IMT for 2020 and beyond," Sep. 2015, 21 pp., https://www.itu.int/dms_pubrec/itu-r/rec/m/R-REC-M.2083-0- 201509-I!!PDF-E.pdf ITU-R M.2290-0, "Future Spectrum Requirements estimate for Terrestrial IMT," Dec 2013, http://www.itu.int/dms_pub/itu-r/opb/rep/R-REP-M.2290- 2014-PDF-E.pdf ITU-R M2376-0, "Technical Feasibility of IMT in bands above 6 GHz," July 2015, http://www.itu.int/dms_pub/itu-r/opb/rep/R-REP-M.2376-2015- PDF-E.pdf J. Zeng, et al, "Pattern Division Multiple Access (PDMA) for Cellular Future Radio Access," Intl Conf on Wireless Comm & Signal Proc (WCSP), Oct. 2015, 5 pp., http://ieeexplore.ieee.org/xpl/login.jsp?tp=&arnumber=7341229 K. Au, et al, "Uplink Contention Based SCMA for 5G Radio Access," http://arxiv.org/vc/arxiv/papers/1407/1407.5495v1.pdf M. AL-imari, et al., "Low Density Spreading Multiple Access," J. Inform Tech Software Eng, Vol 2, Issue 4, 2012, http://epubs.surrey.ac.uk/788182/1/Ready%20to%20Upload.pdf
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19-48 ©2016 Raj Jain http://www.cse.wustl.edu/~jain/cse574-16/ Washington
University in St. Louis Reading List (Cont) Reading List (Cont) M. Bellanger, "FBMC physical layer - principle," June 2011, 13 slides, http://www.cept.org/Documents/se-43/500/SE43(11)Info06_FBMC- physical-layer-principle A. Altamimi, "Interleave Division Multiple Access (IDMA)," http://www.ece.uvic.ca/~cai/IDMA.pdf I. Hwang, B. Song, and S. S. Soliman, "A Holistic View on Hyper-Dense Heterogeneous and Small Cell Networks," IEEE Communications Magazine, Jun 2013, pp. 20-27, http://blog.sciencenet.cn/home.php?mod=attachment&id=62246 D. Batista, et al, "Perspectives on software-defined networks: interviews with five leading scientists from the networking community" Journal of Internet Services and Applications 2015, 6:22, http://www.cse.wustl.edu/~jain/papers/jisa15.htm C. I, et al, "Recent Progress on C-RAN Centralization and Cloudification," IEEE Access, Vol. 2, 2014, pp. 1030-1039, http://ieeexplore.ieee.org/iel7/6287639/6514899/06882182.pdf?arnumber=6 882182
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19-49 ©2016 Raj Jain http://www.cse.wustl.edu/~jain/cse574-16/ Washington
University in St. Louis Wikipedia Links Wikipedia Links https://en.wikipedia.org/wiki/5G https://en.wikipedia.org/wiki/Machine_to_machine https://en.wikipedia.org/wiki/LTE_in_unlicensed_spectrum https://en.wikipedia.org/wiki/LTE_in_unlicensed_spectrum#License_Assist ed_Access_.28LAA.29 https://en.wikipedia.org/wiki/Discontinuous_transmission https://en.wikipedia.org/wiki/Software-defined_networking https://en.wikipedia.org/wiki/Network_function_virtualization https://en.wikipedia.org/wiki/Mobile_edge_computing https://en.wikipedia.org/wiki/C-RAN https://en.wikipedia.org/wiki/Small_cel l https://en.wikipedia.org/wiki/Distributed_antenna_system https://en.wikipedia.org/wiki/Dynamic_Adaptive_Streaming_over_HTTP https://en.wikipedia.org/wiki/3GPP https://en.wikipedia.org/wiki/Beamforming https://en.wikipedia.org/wiki/Discontinuous_reception
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19-50 ©2016 Raj Jain http://www.cse.wustl.edu/~jain/cse574-16/ Washington
University in St. Louis Wikipedia Links (Cont) Wikipedia Links (Cont) https://en.wikipedia.org/wiki/Distributed_antenna_system https://en.wikipedia.org/wiki/Multicast-broadcast_single- frequency_network https://en.wikipedia.org/wiki/Multimedia_Broadcast_Multicast_Service https://en.wikipedia.org/wiki/NarrowBand_IOT
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19-51 ©2016 Raj Jain http://www.cse.wustl.edu/~jain/cse574-16/ Washington
University in St. Louis References References 4G Americas, "Integration of Cellular and WiFi Networks," Sep 2013, 65 pp., http://www.4gamericas.org/files/3114/0622/2546/Integration_of_Cellular_a nd_WiFi_Networks_White_Paper-_9.25.13.pdf G. Ding, et al, "Application of Non-orthogonal Multiple Access in LTE and 5G Networks," https://pdfs.semanticscholar.org/a404/21a9762db528bfe848166765fee43e74 0c94.pdf G. Xu, et al, "Full-Dimension MIMO: Status and Challenges in Design and Implementation," May 2014, http://www.ieee- ctw.org/2014/slides/session3/CTW_2014_Samsung_FD-MIMO.pdf Huawei, "5G: New Air Interface and Radio Access Virtualization," April 2015, 6 pp., http://www.huawei.com/minisite/has2015/img/5g_radio_whitepaper.pdf Huawei, "White Paper on Spectrum," February 2013, http://www.huawei.com/us/others/index-cdf_en_group_white_book.htm
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19-52 ©2016 Raj Jain http://www.cse.wustl.edu/~jain/cse574-16/ Washington
University in St. Louis References (Cont) References (Cont) I. S. Simic, "Evolution of Mobile Base Station Architectures," Microwave Review, Jun 2007, 6pp., http://www.mtt- serbia.org.rs/microwave_review/pdf/Vol13No1-07-ISimic.pdf IMT-2020 (5G) Promotion Group, "5G Concept," Feb 2015, 18 pp., http://www.imt-2020.cn/en/documents/download/25 Huawei, "White Paper on Spectrum," February 2013, http://www.huawei.com/us/others/index-cdf_en_group_white_book.htm ITU-R M2376-0, "Technical Feasibility of IMT in bands above 6 GHz," July 2015, http://www.itu.int/dms_pub/itu-r/opb/rep/R-REP-M.2376-2015- PDF-E.pdf ITU-R, "Workplan, timeline, process and deliverables for the future development of IMT," 4pp., http://www.itu.int/en/ITU-R/study- groups/rsg5/rwp5d/imt-2020/Documents/Antipated-Time-Schedule.pdf J. C. Fricke, et al, "An Interleave-Division Multiple Access Based System Proposal for the 4G Uplink," IST Summit, 2005, 5 pp., http://www.agilon.de/Dr__Hendrik_Schoneich/Publications/Fricke_IST_Su mmit_2005.pdf
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19-53 ©2016 Raj Jain http://www.cse.wustl.edu/~jain/cse574-16/ Washington
University in St. Louis References (Cont) References (Cont) L. Gupta, R. Jain, H. Chan, "Mobile Edge Computing - an important ingredient of 5G Networks," IEEE Softwarization Newsletter, March 2016, http://sdn.ieee.org/newsletter/march-2016/mobile-edge-computing-an- important-ingredient-of-5g-networks P. Skillermark and P. Frenger, "Enhancing Energy Efficiency in LTE with Antenna Muting," 75th Vehicular Technology Conf. (VTC Spring), Yokohama, 2012, pp. 1-5, https://pdfs.semanticscholar.org/29ec/17e00ccae04ae34b74f9e6e62c1e2c42 d789.pdf P. Zhu, "5G Enabling Technologies," PIMRC, Sep 2014, 20 slides, http://www.ieee-pimrc.org/2014/2014-09- 03%205G%20Enabling%20Technologies%20PMIRC%20Huawei_Final.pd f Raj Jain, "SDN and NFV: Facts, Extensions, and Carrier Opportunities," AT&T Labs SDN Forum Seminar, April 10, 2014, http://www.cse.wustl.edu/~jain/papers/adn_att.htm
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19-54 ©2016 Raj Jain http://www.cse.wustl.edu/~jain/cse574-16/ Washington
University in St. Louis References (Cont) References (Cont) T. Stockhammer, "Dynamic Adaptive Streaming over HTTP - Standards and Design Principles," MMSys'11, Feb 2011, San Jose, CA, https://svn- itec.uni- klu.ac.at/trac2/dash/export/58/trunk/documentation/02%20mmt21da- stockhammer.pdf V. Pauli, Y. Li, E. Seidel, "Dynamic TDD for LTE-A and 5G," Nomor Research GmbH, Sep 2015, 8 pp., http://nashville.dyndns.org:823/YourFreeLibrary/_lte/LTE%20advanced/W hitePaperNomor_LTE-A_5G-eIMTA_2015-09.pdf W. Afifi and M. Krunz, "Adaptive Transmission-Reception-Sensing Strategy for Cognitive Radios with Full-duplex Capabilities," April 2010, 12 pp., http://www2.engr.arizona.edu/~wessamafifi/DySPAN14.pdf ITU-R M.2370-0, "IMT traffic estimates for the years 2020 to 2030," Jul 2015, 51 pp., http://www.itu.int/dms_pub/itu-r/opb/rep/R-REP- M.2370-2015-PDF-E.pdf ITU-R M.2012-2, "Detailed specifications of the terrestrial radio interfaces of International Mobile Telecommunications-Advanced (IMT-Advanced)," Sep 2015, 168 pp., https://www.itu.int/dms_pubrec/itu- r/rec/m/R-REC-M.2012-2-201509-I!!PDF-E.pdf
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19-55 ©2016 Raj Jain http://www.cse.wustl.edu/~jain/cse574-16/ Washington
University in St. Louis References (Cont) References (Cont) Ericsson, “LTE Release 13,” April 2015, 10 pp., http://www.ericsson.com/res/docs/whitepapers/150417-wp-lte-release-13.pdf 4G_Americas, “LTE_Carrier_Aggregation: Technology Development and Deployment Worldwide,” October 2014, 53 pp., http://www.4gamericas.org/files/8414/1471/2230/4G_Americas_Carrier_Aggregatio n_FINALv1_0_3.pdf 4G Americas, “Cellular_Technologies_Enabling_the_Internet of Things,” Nov_2015, 65 pp., http://www.4gamericas.org/files/6014/4683/4670/4G_Americas_Cellular_Technolo gies_Enabling_the_IoT_White_Paper_-_November_2015.pdf Huawei, “Active Antenna System,” November 2012, 16 pp., http://www1.huawei.com/en/static/AAS-129092-1-197969.pdf T. Lomar, et al., “Delivering Content with LTE Broadcast,” Ericsson Review, Feb 2013, 8 pp., http://www.ericsson.com/res/thecompany/docs/publications/ericsson_review/2013/e r-lte-broadcast.pdf
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19-56 ©2016 Raj Jain http://www.cse.wustl.edu/~jain/cse574-16/ Washington
University in St. Louis References (Cont) References (Cont) Viavi Solutions Inc., “LTE Evolved Multimedia Broadcast Multicast Services (eMBMS),” 2015, 16 pp., http://www.viavisolutions.com/sites/default/files/technical-library-items/lteembms- wp-nsd-nse-ae.pdf Nokia, “LTE Networks for Public Safety Services,” 2014, 24 pp., http://networks.nokia.com/sites/default/files/document/nokia_lte_for_public_safety_ white_paper.pdf Nokia, “LTE for Unlicensed Spectrum,” 2014, 12 pp., http://networks.nokia.com/sites/default/files/document/nokia_lte_unlicensed_white_ paper.pdf Nokia, “LTE-M – Optimizing LTE for the Internet of Things,” 2015, http://networks.nokia.com/sites/default/files/document/nokia_lte-m_- _optimizing_lte_for_the_internet_of_things_white_paper.pdf Ericson, “Cellular Networks for Massive IoT,” Jan 2016, http://www.ericsson.com/res/docs/whitepapers/wp_iot.pdf DAS Forum, “Distributed Antenna Systems (DAS),” 33 slides, http://www.newjerseywireless.org/3.0/docs/njwadasnov16final.pdf
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19-57 ©2016 Raj Jain http://www.cse.wustl.edu/~jain/cse574-16/ Washington
University in St. Louis References (Cont) References (Cont) Ericsson, “LTE License Assisted Access,” 18 slides, http://www.ericsson.com/res/thecompany/docs/press/media_kits/ericsson- license-assisted-access-laa-january-2015.pdf B. Bertenyi, “LTE Standards for Public Safety – 3GPP View,” 25 slides, May 2013, http://www.3gpp.org/IMG/pdf/2013_05_3gpp_ccw.pdf Qualcomm Research, “LTE eMBMS Technology Overview,” 18 slides, Nov 2012, https://s3.amazonaws.com/sdieee/222- eMBMS_tech_overview_IEEE_112712.pdf M. Blanco, “Carrier Aggregation: Fundamentals and Deployments,” 34 slides, 2014, http://www.keysight.com/upload/cmc_upload/All/23Jan14WebcastSlides.pd f
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19-58 ©2016 Raj Jain http://www.cse.wustl.edu/~jain/cse574-16/ Washington
University in St. Louis References (Cont) References (Cont) T. L. Marzetta, "Noncooperative Cellular Wireless with Unlimited Numbers of Base Station Antennas," in IEEE Transactions on Wireless Communications, vol. 9, no. 11, pp. 3590-3600, November 2010, http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=5595728 (Original paper on Massive MIMO) R. Hoshyar, et al., "Novel Low-Density Signature for Synchronous CDMA Systems Over AWGN Channel," IEEE Trans on Signal Processing, Vol. 56, No. 4, April 2008, pp. 1616-1626, https://pdfs.semanticscholar.org/5e4b/405202c92fd77a12f463ca1247a8b59f d935.pdf (Original paper on LDS) H. Nikopour and H. Baligh, “Sparse Code Multiple Access,” 24th International Symposium on Personal, Indoor and Mobile Radio Communications: Fundamentals and PHY Track, 2013, http://ieeexplore.ieee.org/xpl/login.jsp?tp=&arnumber=6666156 (Original Paper on SCMA) L. Ping, et al, "Interleave-Division Multiple-Access," IEEE Transactions on Wireless Communications, Vol. 5, No. 4, April 2006, http://www.ee.cityu.edu.hk/~liping/Research/Journal/IDMA2.pdf (Original paper on IDMA)
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19-59 ©2016 Raj Jain http://www.cse.wustl.edu/~jain/cse574-16/ Washington
University in St. Louis References (Cont) References (Cont) D. W. Bliss, P. A. Parker, A. R. Margetts, "Simultaneous Transmission and Reception for Improved Wireless Network Performance," 2007 IEEE/SP 14th Workshop on Statistical Signal Processing, Madison, WI, 26-29 Aug. 2007, pp. 478 - 482, http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=4301304 (Original paper on Simultaneous Transmit and Receive) E. Arikan, "Channel Polarization: A Method for Constructing Capacity- Achieving Codes for Symmetric Binary-Input Memoryless Channels," in IEEE Transactions on Information Theory, vol. 55, no. 7, pp. 3051-3073, July 2009, http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=5075875 (Original paper on Polar Codes)
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19-60 ©2016 Raj Jain http://www.cse.wustl.edu/~jain/cse574-16/ Washington
University in St. Louis Acronyms Acronyms 3GPP 3rd Generation Partnership Project ADC Analog-to-Digital Converter API Application Programming Interface AWGN Additive White Gaussian Noise BBU Broadband Unit BS Base Station CapEx Capital Expenditure CDMA Code Division Multiple Access CDN Content Distribution Networks cDRX Connected mode discontinuous reception CGNAT Carrier Grade Network Address Translator DAC Digital-to-Analog Converter DAS Distributed Antenna Systems DASH Dynamic Adaptive Streaming over HTTP dB DeciBel dBm DeciBel Milliwatt
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19-61 ©2016 Raj Jain http://www.cse.wustl.edu/~jain/cse574-16/ Washington
University in St. Louis Acronyms (Cont) Acronyms (Cont) DL Downlink DRS Discovery reference signals DRX Discontinuous Reception DS-CDMA Direct Sequence Code Division Multiple Access DSL Digital Subscriber Line DSP Digital signal processing DTX Discontinuous Transmission eIMTA Enhanced Interference Mitigation and Traffic Adaptation eMBMS Enhanced Multimedia Broadcast Multicast System eNB Evolved Node-B EPC Evolved Packet Core EPDCCH Enhanced Physical Downlink Control Channel FBMC Filtered Bank Multicarrier FD-MIMO Full Dimension MIMO FDD Frequency Division Duplexing GHz Giga Hertz
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19-62 ©2016 Raj Jain http://www.cse.wustl.edu/~jain/cse574-16/ Washington
University in St. Louis Acronyms (Cont) Acronyms (Cont) GSM Global System for Mobile Telephony HARQ Hybrid Automatic Repeat Request HetSNets Heterogeneious Small Cell Network HSPA High Speed Packet Access HTC Human Type Communication HTTP Hyper-Text Transfer Protocol IDMA Interleave Division Multiple Access IEEEInstitution of Electrical and Electronic Engineers IMS IP Multimedia System IMT-2020 5G IMT International Mobile Telecommunications IoT Internet of Things IPTVInternet Protocol Television ISO International Standards Organization ITU-R International Telecommunications Union- Radio ITU International Telecommunications Union
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19-63 ©2016 Raj Jain http://www.cse.wustl.edu/~jain/cse574-16/ Washington
University in St. Louis Acronyms (Cont) Acronyms (Cont) kHz Kilo Hertz LAA License Assisted Access LDS Low Density Spreading LTE-A Long-Term Evolution Advanced LTE-M Long-Term Evolution for Machine Type Communication LTE-U Long-Term Evolution Unlicensed LTE Long-Term Evolution MC-CDMA Multi-carrier Code Division Multiple Access MEC Mobile Edge Computing MHz Mega Hertz MIMO Multiple Input Multiple Output MME Mobility Management Entity MPD Media presentation description MTC Machine Type Communication mW Milli Watt NB-LTE Narroband Long Term Evolution
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19-64 ©2016 Raj Jain http://www.cse.wustl.edu/~jain/cse574-16/ Washington
University in St. Louis Acronyms (Cont) Acronyms (Cont) NFV Network Function Virtualization NOMA Non-Orthogonal Multiple Access OFDM Orthogonal Frequency Division Multiplexing OFDMA Orthogonal Frequency Division Multiple Access OpEx Operational Expenditure PA Power Amplifier PDMA Pattern Division Multiple Access PHY Physical Layer PRB Physical Resource Blocks PSD Power Spectral Density PSM Power Saving Mode QAM Quadrature Amplitude Monitor QoE Quality of Experience QoS Quality of Service RAN Radio Access Network RAT Radio Access Technology
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19-65 ©2016 Raj Jain http://www.cse.wustl.edu/~jain/cse574-16/ Washington
University in St. Louis Acronyms (Cont) Acronyms (Cont) REC Recommendation REP Report RF Radio Frequency RNC Radio Network Controller RRH Remote Radio Head SCMA Sparse code multiple access SDN Software Defined Networking SDR Software Defined Radios SFBC Space-Frequency Block Code SIC Successive Interference Cancellation TDD Time Division Duplexing TV Television UE User Element UL Uplink URL Uniform Resource Locator USA United States of America
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19-66 ©2016 Raj Jain http://www.cse.wustl.edu/~jain/cse574-16/ Washington
University in St. Louis Acronyms (Cont) Acronyms (Cont) VTC Vehicular Technology Conference WCSP Wireless Communications and Signal Processing WiFi Wireless Fidelity WiMAX Worldwide Interoperability for Microwave Access
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19-67 ©2016 Raj Jain http://www.cse.wustl.edu/~jain/cse574-16/ Washington
University in St. Louis Scan This to Get These Slides Scan This to Get These Slides j_195g
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19-68 ©2016 Raj Jain http://www.cse.wustl.edu/~jain/cse574-16/ Washington
University in St. Louis Related Modules Related Modules Introduction to Cellular Networks: 1G/2G/3G, http://www.cse.wustl.edu/~jain/cse574-16/j_15cel.htm Introduction to LTE, http://www.cse.wustl.edu/~jain/cse574-16/j_16lte.htm Introduction to 4G: LTE-Advanced, http://www.cse.wustl.edu/~jain/cse574-16/j_17lta.htm Audio/Video Recordings and Podcasts of Professor Raj Jain's Lectures, https://www.youtube.com/channel/UCN4-5wzNP9-ruOzQMs-8NUw Low Power WAN Protocols for IoT, http://www.cse.wustl.edu/~jain/cse574-16/j_14ahl.htm
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