A Novel Method of Limited Channel Feedback for OFDMA Systems

被引：0

作者：

Kwon, Sunhyoung ^{[1
]}

Lee, Namjeong ^{[1
]}

Lee, Keonkook ^{[1
]}

Kang, Joonhyuk ^{[1
]}

Gil, Gye-Tae ^{[2
]}

Park, Se-Jun ^{[2
]}

机构：

[1] Korea Adv Inst Sci & Technol, Dept Elect Engn, Taejon, South Korea

[2] Korea Telecom, Seongnam, South Korea

来源：

2009 IEEE 70TH VEHICULAR TECHNOLOGY CONFERENCE FALL, VOLS 1-4 | 2009年

关键词：

Orthogonal Frequency Division Multiple Access (OFDMA); Channel State Information (CSI); limited feedback;

D O I：

暂无

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

In this paper, we propose a new limited channel feedback algorithm for Orthogonal Frequency Division Multiple Access (OFDMA) systems. The proposed method reports channel information of relative maximum and minimum points of the channel gain from users to base station (BS). Based on the feedback information, BS reconstructs the channel for all the subcarriers using linear interpolation. Compared with the full CSI reporting, the proposed scheme requires only 1/60 feedback information at the expense of 1% throughput loss. Simulation results show that the proposed scheme provides an attractive tradeoff between uplink feedback amount and downlink system performance compared to the conventional limited feedback techniques.

引用

页码：1016 / +

页数：2

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