Title :
Optimal power control and antenna selection for Multi-User Distributed Antenna System with heterogeneous QoS constraints
Author :
Hassan, N.U. ; Chau Yuen ; Zhaoyang Zhang
Author_Institution :
Dept. of Electr. Eng., LUMS, Lahore, Pakistan
Abstract :
In this paper we consider optimal power control and optimal antenna selection problem in a Multi-User Distributed Antenna System (DAS). We consider a two-antenna distributed system with users having heterogeneous quality-of-service (QoS) requirements. We consider two types of users, one is Delay Sensitive (DS) while the other is Delay Tolerant (DT). We develop an optimal algorithm for sum rate maximization subject to QoS constraints of the DS users. Due to high complexity of optimal algorithm we then propose a low complexity sub-optimal algorithm. The performance of sub-optimal algorithm is comparable to that of optimal algorithm with huge complexity reduction.
Keywords :
antenna arrays; delay tolerant networks; delays; optimal control; optimisation; power control; quality of service; DAS; DS; DT; cellular network; delay sensitive; delay tolerant; heterogeneous QoS constraint; low complexity suboptimal algorithm; multiuser distributed antenna selection system; optimal power control; quality-of-service; sum rate maximization; two-antenna distributed system; Antenna arrays; Complexity theory; Optimization; Quality of service; Resource management; Transmitting antennas;
Conference_Titel :
Globecom Workshops (GC Wkshps), 2012 IEEE
Conference_Location :
Anaheim, CA
Print_ISBN :
978-1-4673-4942-0
Electronic_ISBN :
978-1-4673-4940-6
DOI :
10.1109/GLOCOMW.2012.6477734