Analytical evaluation of hybrid feedback scheme for OFDMA system

被引：0
|
作者：
SUN Qiaoyun [1 ]
CHAI Wenyan [1 ]
YANG Xiuyun [1 ]
SUN Kai [2 ]
WU Cuiting [1 ]
机构：
[1] Electronic and Information Engineering Department, Beijing City University
[2] College of Electronic Information Engineering, Inner Mongolia
来源：
The Journal of China Universities of Posts and Telecommunications | 2013年 / 20卷 / 04期
关键词：
D O I：
暂无
中图分类号：
TN929.531 [频分多址（FDMA）移动通信];
学科分类号：
摘要：
This paper first introduces the performance analysis of two classical channel quality indicator (CQI) feedback schemes which are best-n feedback and the threshold based feedback and derives the mathematical expressions of average capacity which is described by Theorem 1 and 2.Then, a reduced feedback scheme is designed for multiple traffics and multi-channel.The novel scheme combines the best-n feedback and the threshold based feedback together to reduce the feedback overhead.The proposed scheme can not only guarantee the quality of service (QoS) requirement of real time (RT) traffic but also reduce feedback overhead at the cost of a marginal increased downlink overhead.Simulation results demonstrated the good performance of the proposed feedback scheme.
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页码：34 / 38
页数：5
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