ECE 305 Presentation: 4G/5G Power Control and Link Adaptation Analysis

This presentation provides a comprehensive overview of power control and link adaptation techniques in both 4G and 5G wireless networks. It begins with an introduction to 4G and 5G technologies, followed by a detailed exploration of power control mechanisms, including open-loop, closed-loop, adaptive, and interference-based methods. The presentation examines Power Control in 4G and 5G networks, specifically focusing on PUSCH power control. It further analyzes link adaptation strategies in both technologies, including UL, DL, and frequency domain link adaptation. A comparative analysis highlights the key differences and advancements in power control and link adaptation between 4G and 5G, culminating in a conclusion summarizing the key takeaways and referencing relevant academic sources. The presentation includes figures and equations to illustrate key concepts such as interference measurement based power control and adaptive power control. This document is designed to assist students in understanding the complex dynamics of wireless communication systems.

(Edit in Slide Master so it appear on every slide) Subject Number. Project Title. Your Name(s)
Supervisor A/Prof Sandy K.Sandrasegaran
Presentation Outline
• Introduction
• What is 4G and 5G
• Power control of 4G
• Power control of 5G
• Comparison of 4G and 5G power control
• Link adaptation of 4G
• Link adaptation of 5G
• Comparison of 4G and 5G Link adaptation
• Conclusion

(Edit in Slide Master so it appear on every slide) Subject Number. Project Title. Your Name(s)
Supervisor A/Prof Sandy K.Sandrasegaran
4G Technology
What is 4G Wireless Technology ?

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Supervisor A/Prof Sandy K.Sandrasegaran
5G Technology
What is 5G Wireless Technology ?

(Edit in Slide Master so it appear on every slide) Subject Number. Project Title. Your Name(s)
Supervisor A/Prof Sandy K.Sandrasegaran
Power Control

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Supervisor A/Prof Sandy K.Sandrasegaran
Power Control in wireless Network
• PUSCH Power Control (Open-loop power control +
Closed-loop power control)
• Open- Loop power control
• Close-Loop power control
• Adaptive power control
• Distributed power control
• Transmit Power control
• Opportunistic power control
• Dynamic-SIR tracking power control

(Edit in Slide Master so it appear on every slide) Subject Number. Project Title. Your Name(s)
Supervisor A/Prof Sandy K.Sandrasegaran
Power control in wireless Network
• PUSCH Power control
PUSCH Power control in 4G
PUSCH Power control in 5G

(Edit in Slide Master so it appear on every slide) Subject Number. Project Title. Your Name(s)
Supervisor A/Prof Sandy K.Sandrasegaran
Power Control in 4G Network
• Interference measurement based power control
Ptf=min(Ptf,max,γtarget+ PI (βm,βf)+Pn−Gf)dBm
Where,
Gf=path-gain between HeNB and femto UE
PI (βm,βf) = total downlink interference power
estimated by femto UE (dbm)
Ptf,max = maximum transmit power of HeNB (dbm)
Pn = noise power (dbm).

(Edit in Slide Master so it appear on every slide) Subject Number. Project Title. Your Name(s)
Supervisor A/Prof Sandy K.Sandrasegaran
Power Control in 4G Network
• Performance with Power Control
Fig. CDF of downlink SINR of MUEs with HeNB power control

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Supervisor A/Prof Sandy K.Sandrasegaran
Power Control in 4G Network
• Adaptive Power Control
Pc ≤ Pmax, subchannel
∑c=0C−1Pc≤Pmax,total
Where, Pc= Per subchannel,

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Supervisor A/Prof Sandy K.Sandrasegaran
Power Control in 4G Network
• Closed Loop Power Control
Fig. Closed Loop control view of the OFDMA DL resource scheduling tasks

(Edit in Slide Master so it appear on every slide) Subject Number. Project Title. Your Name(s)
Supervisor A/Prof Sandy K.Sandrasegaran
Power Control in 5G Network
• Power Control Options Based on LTE Mechanisms
* Open-Loop Power control
* Close-Loop Power control
PUE=P0−αG+ΔTF+f(ΔTPC)+10log10M

(Edit in Slide Master so it appear on every slide) Subject Number. Project Title. Your Name(s)
Supervisor A/Prof Sandy K.Sandrasegaran
Power Control in 5G Network
• Open-Loop Power control
Fig. Open-loop power control