This document discusses the evolution of cellular network generations from 1G to 5G and the challenges of developing 5G networks. It outlines the key capabilities needed for 5G including speeds of 1-10Gbps, latency of 1ms, increased bandwidth and device connectivity. The document presents the potential 5G network architecture and areas of research like massive MIMO, millimeter wave solutions, and cognitive radio networks that could help address the 5G challenges.

1. Mukesh Kumar Maheshwari

2.  Introduction
 Background
 5G Challenges
 5G Cellular Network Architecture
 Possible Areas
 References

3.  ICT is becoming increasingly important to
improve the economy of the world.
 Wireless communication networks are
perhaps the most critical element in the
global ICT. It is one of the fastest growing
and dynamic sector in the world.
 The phenomenal success of wireless mobile
communications is mirrored by a rapid pace
of technology innovation.

4.  1980s, 2.4kbps, analog system, low
capacity, unreliable handoff, poor
voice links, and no security.
2nd Generation (2G)
 Late 1990s, digital system, 64 kbps,
voice and sms services, GSM, CDMA,
and IS95.
 with GPRS and EDGE called 2.5G, can
assist data rates upto 144kbps.

5.  Late 2000, IP based, 128 Kbps for mobile
stations, and 2 Mbps for fixed applications
WCDMA, UMTS, CDMA 2000, Requires more
power.
 HSUPA/HSDPA and EVDO named as 3.5G with
improved data rate of 5-30 Mbps.
4th Generation (4G)
 IP based, data rates of up to 1Gb/s for low
mobility, such as nomadic/local wireless
access, and up to 100Mb/s for high mobility,
LTE, LTE-A.

6.  It has been predicted by the Wireless World
Research Forum (WWRF) that 7 trillion
wireless devices will serve 7 billion people
by 2017; that is, the number of network-
connected wireless devices will reach 1000
times the world’s population.
 It has a expected speed of 1gbps.
 Lower cost than the previous version.
 With an exponential increase in the demand
of the users, 4G will now be easily replaced
with 5G.

7. As a result of this blending of requirements,
it is commonly assumed that 5G cellular
networks must address following challenges:
 1-10Gbps connections to end points in the
field (i.e. not theoretical maximum)
 1 millisecond end-to-end round trip delay
(latency)
 1000x bandwidth per unit area
 10-100x number of connected devices
 (Perception of) 99.999% availability
 (Perception of) 100% coverage
 90% reduction in network energy usage
 Up to ten year battery life for low power,
machine-type devices

8. Figure 5G Challenges

9. Figure 5G Architecture

10.  Massive MIMO
 Spatial Modulation
 Millimeter Wave Solution
 Mobile Femtocell
 Cognitive Radio Network
 Visible Light Communication
 Green Communication

11.  Realistic Channel Model for 5G networks.
 Reducing Signal Processing Complexity
for Massive MIMO.
 Interference Management for CR network.

12.  Cheng-Xiang Wang; Haider, F.; Xiqi Gao; Xiao-Hu You;
Yang Yang; Dongfeng Yuan; Aggoune, H.; Haas, H.;
Fletcher, S.; Hepsaydir, E., "Cellular architecture and key
technologies for 5G wireless communication networks,"
in Communications Magazine, IEEE , vol.52, no.2,
pp.122-130, February 2014.
 Gupta, A.; Jha, R.K., "A Survey of 5G Network:
Architecture and Emerging Technologies," in Access,
IEEE , vol.3, no., pp.1206-1232, 2015.
 ANALYSIS Understanding 5G: Perspectives on future
technological advancements in mobile December 2014
(https://gsmaintelligence.com/research/?file=141208-
5g.pdf&download)

13. QUESTIONS