Title :
Hard Fairness versus Proportional Fairness in Wireless Communications: the Single-Cell Case
Author :
Caire, Giuseppe ; Müller, Ralf ; Knopp, Raymond
Author_Institution :
Univ. of Southern California, Los Angeles, CA
Abstract :
We consider the uplink and the downlink of a multiuser wireless system with one base station and K user terminals (single-cell case). Each user is affected by a position-dependent path loss, fixed in time, and by a slowly time-varying frequency-selective fading channel modeled as M parallel block-fading channels. We study the system throughput (sum rate) versus Eb/N0 under hard fairness and proportional fairness constraints. We obtain closed-form expressions for the throughput in the limit of a large number of users, as well as for the asymptotics in the low and high SNR regions
Keywords :
fading channels; multiuser channels; time-varying channels; wireless channels; M parallel block-fading channels; SNR regions; base station; closed-form expressions; hard fairness constraint; multiuser wireless system; position-dependent path loss; proportional fairness constraint; single-cell case; sum rate; system throughput; time-varying frequency-selective fading channel; user terminals; wireless communications; Base stations; Closed-form solution; Delay effects; Delay systems; Downlink; Fading; Resource management; Scheduling algorithm; Throughput; Wireless communication;
Conference_Titel :
Information Theory, 2006 IEEE International Symposium on
Conference_Location :
Seattle, WA
Print_ISBN :
1-4244-0505-X
Electronic_ISBN :
1-4244-0504-1
DOI :
10.1109/ISIT.2006.261693
