Uplink Power Allocation for Throughput and Energy Efficiency Over Nakagami-m Fading Channels

被引：3

作者：

Ho, Danh H. ^{[1
]}

Gulliver, T. Aaron ^{[1
]}

机构：

[1] Univ Victoria, Dept Elect & Comp Engn, Victoria, BC V8W 2Y2, Canada

来源：

IEEE TRANSACTIONS ON GREEN COMMUNICATIONS AND NETWORKING | 2021年 / 5卷 / 01期

基金：

加拿大自然科学与工程研究理事会;

关键词：

Power allocation; normalized SINR; outage probability; Nakagami-m fading; throughput; energy efficiency; OUTAGE-PROBABILITY; NETWORKS; COMMUNICATION; SYSTEMS; UNCERTAINTIES; MODEL;

D O I：

10.1109/TGCN.2020.3046140

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

In this article, power allocation in cellular networks considering Nakagami-m fading is proposed. The objective is to optimize the network energy efficiency and throughput subject to user outage probability constraints. The moment generating function (MGF) is used to derive the exact outage probability over Nakagami-m fading channels. Further, tight upper and lower bounds on the outage probability are derived using the Weierstrass, Bernoulli and exponential inequalities. These bounds are used to characterize the relationship between outage probability and normalized signal to interference plus noise ratio (SINR) in Nakagami-m fading. Power allocation algorithms for throughput maximization and energy efficiency are proposed. The throughput maximization problem has a logarithmic form so a differential method is used to solve this problem. The proposed energy efficiency problem has a nonconvex fractional program form so a parametric transformation is used to convert it to a subtractive optimization problem which can be solved iteratively. Simulation results are presented which show that the proposed schemes provide better performance than existing methods in terms of power consumption, throughput, energy efficiency and outage probability.

引用

页码：190 / 202

页数：13

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