- The document proposes a Demand Based beam forming technique using MIMO in Non-Terrestrial Networks (NTN) to provide stable and fast data transmission. It implements a User Defined Demand Based Allocation (DBA) scheme. - The existing system uses Single-Frequency Multi-Beam Transmission (SFMBT) but has disadvantages like interference and wasted power resources. - The proposed system uses multi-performance MIMO transmitters called "Nodes" that share beam coverage power automatically through the DBA scheme based on receiver demand. It aims to maximize efficiency and provide stable transmission.

1. Demand based beam forming
technique with MIMO in NTN

2. ABSTRACT
• A novel radio resource management scheme, named Single-Frequency Multi-Beam
Transmission (SFMBT), for efficient delivery over the 5G NR multi-beam NTN systems.
• Providing stable and fast data transmission service is challenging in a high mobility wireless
communication system.
• Massive multiple-input multiple-output (MIMO) beam forming is deemed as a potential
solution.
• User Defined model - Demand Based Allocation(DBA) scheme is implemented here.

3. OBJECTIVE
• To maximize the overall efficiency of the mobile broadband and providing stable
and fast data transmission service.
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4. NTN: Non Terrestrial Networks
• 3GPP enables the cooperation of satellite with terrestrial networks to
provide the 5G services with the promised key performance
indicators:
oGlobal coverage & mobility
o Service ubiquity
o Overall network reliability and security
Data
Network
NG-C NG-
U
UE gNB NGC
N6

5. NTN: APPLICATION
• 5G service roll out in un-served or underserved areas
• Reinforce service reliability by providing service continuity for
moving platforms.
• Increase service for critical communications, future
railway/maritime/aeronautical communications
• multicast/broadcast resources.

6. EXISTING SYSTEM
• In the existing system, it propose a novel radio resource management scheme, named Single-
Frequency Multi-Beam Transmission (SFMBT).
• The main thinking is to group beams into the dedicated Beam Areas, wherein a certain content
flow is delivered via simultaneous multi-beam transmissions over the same radio resources.
• A simulation campaign is conducted under different scenarios to assess the effectiveness of the
proposed SF-MBT algorithm as compared to the current schemes based on frequency reuse

7. DISADVANTAGES OF EXISTING SYSTEM
• Single Frequency leads to interference
• More complex
• Wastage of Power resource.

8. PROPOSED SYSTEM
• In the proposed system, The design of Implementation of Multi-performance MIMO
Transmitter is carried out and call it as Nodes.
• Each nodes communicate with the Receiver end with different (Random) beam forming or
Coverage.
• When certain receiver in more demand the MIMO antennas share the beam coverage through
sharing the power(energy).
• All controls can be done by Automatically Through an User Defined model - Demand Based
Allocation(DBA) scheme.
• The output plots contains the BER graphs , Beam forming plots.

9. ADVANTAGES
• significant increases in system’s capacity
• bandwidth efficiency
• improvement in QoS.

10. SIMULATION TOOL
10
MATLAB2015a

11. REFERENCES
[1] “Solutions for NR to support non-terrestrial networks (NTN), release 16,” 3GPP, Sophia Antipolis, France, Rep.
3GPP TR 38.821, Dec. 2019. [Online]. Available: https://www.3gpp.org/
[2] (Jun. 2019). Ericsson Mobility Report. [Online]. Available: https://
www.ericsson.com/49d1d9/assets/local/mobility-report/documents/ 2019/ericsson-mobility-report-june-2019.pdf
[3] D. Gómez-Barquero, C. Douillard, P. Moss, and V. Mignone, “DVBNGH: The next generation of digital
broadcast services to handheld devices,” IEEE Trans. Broadcast., vol. 60, no. 2, pp. 246–257, Jun. 2014.
[4] A. Guidotti, A. Vanelli-Coralli, G. Taricco, and G. Montorsi, “User clustering for multicast precoding in multi-
beam satellite systems,” Jun. 2017. [Online]. Available: arXiv:1706.09482v2.
[5] “Study on new radio (NR) to support non terrestrial networks, release 15,” 3GPP, Sophia Antipolis, France, Rep.
3GPP TR 38.811, Sep. 2019. [Online]. Available: https://www.3gpp.org/
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12. REFERENCES
[6] General Aspects and Principles for Interfaces Supporting Multimedia Broadcast Multicast Service (MBMS)
Within E-UTRAN, Rel. 14, 3GPP Standard TS 36.440, 2017. [Online]. Available: https://www.3gpp.org/
[7] V. Joroughi, M. Á. Vàzquez, A. I. Pérez-Neira, and B. Devillers, “Onboard beam generation for multibeam
satellite systems,” IEEE Trans. Wireless Commun., vol. 16, no. 6, pp. 3714–3726, Jun. 2017.
[8] “Technical specification group radio access network; Improvement of the multimedia broadcast multicast service
(MBMS) in UTRAN, rel. 7,” 3GPP, Sophia Antipolis, France, 3GPP TR 25.905, 2007. [Online]. Available:
https://www.3gpp.org/
[9] 5G; Study on Scenarios and Requirements for Next Generation Access Technologies Rel. 15, 3GPP Standard TS
38.913, 2018. [Online]. Available: https://www.3gpp.org/
[10] J. J. Gimenez et al., “5G new radio for terrestrial broadcast: A forwardlooking approach for NR-MBMS,” IEEE
Trans. Broadcast., vol. 65, no. 2, pp. 356–368, Jun. 2019
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13. Thank You
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