Title :
Achieving log-utility fairness in CDMA systems via majorization theory
Author_Institution :
Dept. of Electron. Eng., City Univ. of Hong Kong, Hong Kong, China
Abstract :
The log-utility fairness problem in CDMA systems is tackled by a new technique - the theory of majorization. Showing that the objective function is strictly Schur concave, we reduce the dimension of the problem to one. After this reduction, we show that the problem has a monotonic property and thus can be solved efficiently by bisection search.
Keywords :
code division multiple access; search problems; CDMA system; Schur concave; bisection search; log-utility fairness; majorization theory; monotonic property; Approximation algorithms; Base stations; Councils; Decoding; Multiaccess communication; Power control; Random sequences; Resource management; Throughput; Resource allocation, CDMA systems, fairness;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2009.091251
