A Proportional Resource Allocation Algorithm for OFDMA Distributed Antenna System

doi:10.13190/jbupt.200704.125.089

JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM ›› 2007, Vol. 30 ›› Issue (4): 125-128.doi: 10.13190/jbupt.200704.125.089

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A Proportional Resource Allocation Algorithm for OFDMA Distributed Antenna System

LIU Shen-fa,WU Wei-ling

(School of Information Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China)

Received:2006-10-13 Revised:2006-12-04 Online:2007-08-30 Published:2007-08-30
Contact: LIU Shen-fa

Abstract

Abstract:

A sub-carrier and power allocation algorithm is proposed for OFDMA distributed antenna system, which can maximize the effective sum-capacity, and fulfill the proportional rate requirement and per antenna power constraint. Through decomposition, the multi antenna resource allocation problem is divided into several sub-problems on each independent antenna, thus the complexity is reduced greatly. Simulation result shows that the proposed algorithm can fulfill the proportional rate requirement well, and remarkable capacity gain is observed compared with the centralized antenna system and a fixed FDMA allocation algorithm.

Key words: distributed antenna system, orthogonal frequency division multiple access, proportional resource allocation, antenna power constraint

CLC Number:

TN929.5

LIU Shen-fa,WU Wei-ling. A Proportional Resource Allocation Algorithm for OFDMA Distributed Antenna System[J]. JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM, 2007, 30(4): 125-128.

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A Proportional Resource Allocation Algorithm for OFDMA Distributed Antenna System

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