A Window Based Channel Allocation Algorithm for Two-way AF Relay OFDMA Systems

被引：0

作者：

Yang, Jian ^{[1
]}

Yang, Qinghai ^{[1
]}

Fu, Fenglin ^{[1
]}

Kwak, Kyung Sup ^{[2
]}

机构：

[1] Xidian Univ, State Key Lab ISN, Sch Telecommun Engn, 2 Taibainan Lu, Xian 710071, Shaanxi, Peoples R China

[2] Inha Univ, Grad Sch IT & Telecommun, Incheon 402751, South Korea

来源：

18TH ASIA-PACIFIC CONFERENCE ON COMMUNICATIONS (APCC 2012): GREEN AND SMART COMMUNICATIONS FOR IT INNOVATION | 2012年

基金：

新加坡国家研究基金会;

关键词：

Two-way AF relay; limited feedback; channel allocation; QoS requirements;

D O I：

暂无

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

A window based channel allocation scheme is conceived for two-way AF relay aided OFDMA systems. Two users communicating with each other via a specific relay constitute a user-pair. At most one channel index with its channel gain lying within a window, given the left and the right thresholds, is reported to the relay by each user at a time. If two users of a user-pair send non-identical channel indices, one of them makes a concession to match the channel index sent by its partner. Furthermore, all user-pairs with different QoS requirements can employ the concession process with the aid of scheduling scheme parallelly to attain optimal channel allocation. Simulation results demonstrate that the proposed algorithm with limited feedback of channel state information (CSI) achieves asymptotic system performance compared with the full CSI feedback based scheme.

引用

页码：141 / 145

页数：5

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