Title :
A Jain´s Index Perspective on α-Fairness Resource Allocation over Slow Fading Channels
Author :
Chongtao Guo ; Min Sheng ; Yan Zhang ; Xijun Wang
Author_Institution :
State Key Lab. of Integrated Service Networks, Xidian Univ., Xi´an, China
Abstract :
In this letter, by focusing on α-fairness resource allocation in single channel TDMA system with slow Rayleigh fading, we study the impacts of α on the system efficiency and Jain´s index which is widely used as a fairness measure. Also, we prove that increasing α results in higher efficiency but lower Jain´s index and reveal the role of α in controlling the tradeoff between efficiency and fairness. Furthermore, an algorithm is proposed to find the optimal α under a system efficiency constraint or a Jain´s index constraint with fast convergence and low complexity.
Keywords :
Rayleigh channels; convergence; resource allocation; time division multiple access; α-fairness resource allocation; Jain index perspective; fast convergence; single channel TDMA system; slow Rayleigh fading channels; system efficiency constraint; Indexes; Rayleigh channels; Resource management; Throughput; Time division multiple access; Wireless communication; α-fairness; Jain's index; Resource allocation; system efficiency; tradeoff;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2013.021913.130025