Compression of CQI Feedback with Compressive Sensing in Adaptive OFDM Systems
In multiuser wireless communication systems, adaptive modulation and scheduling are promising techniques for increasing the system throughput. To achieve this goal, it is necessary to feed back the information of channel quality indication (CQI). The required feedback rate can be prohibitively high in multicarrier OFDM systems and so the feedback information needs to be compressed. In this paper, a novel CQI feedback scheme is proposed based on the recently proposed compressive sensing theory, and the performance of the scheme is shown to outperform the DCT compression method which is usually considered as the best.
Huanqin Gao Rongfang Song Junxi Zhao
Nanjing University of Posts & Telecommunications, Nanjing 210003, China Nanjing University of Posts & Telecommunications, Nanjing 210003, China National Mobile Communicatio
国际会议
上海
英文
1-4
2010-10-20（万方平台首次上网日期，不代表论文的发表时间）