A semi-distributed power allocation for the cooperative relay in OFDMA network

Author

Zechun, Lu ; Zhenmin, Zhao ; Xiangming, Wen ; Yong, Sun ; Wei, Li

Author_Institution

Sch. of Inf. & Commun. Eng., Beijing Univ. of Posts & Telecommun., Beijing, China

fYear

2011

fDate

25-28 Sept. 2011

Firstpage

934

Lastpage

937

Abstract

In this paper we propose a semi-distributed power allocation algorithm(S-DPA) in the downlink of cellular OFDMA-relay network. This algorithm introduces non-cooperative game theory in the second time subslot for relays and TS algorithm in the first time subslot for base stations. TS algorithm can match the data rate of two-hop links for each relay. Simulation results show that compared with equal power allocation algorithm, this algorithm not only improves the average throughput, but also reduces system energy consumption.

Keywords

OFDM modulation; cellular radio; cooperative communication; frequency division multiple access; game theory; average throughput; base stations; cellular OFDMA-relay network; cooperative relay; data rate; first time subslot; noncooperative game theory; second time subslot; semidistributed power allocation algorithm; system energy consumption reduction; two-hop links; Interference; OFDM; Relays; Resource management; Throughput; Vectors; Wireless communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Communication Technology (ICCT), 2011 IEEE 13th International Conference on

Conference_Location

Jinan

Print_ISBN

978-1-61284-306-3

Type

conf

DOI

10.1109/ICCT.2011.6158016

Filename

6158016