標題: FEEDBACK FOR TIME-CORRELATED MIMO-OFDM SYSTEM USING PREDICTIVE QUANTIZATION OF BIT LOADING AND SUBCARRIER CLUSTERING
作者: Lin, Yuan-Pei
Chou, Tzu-Hsuan
Phoong, See-May
電機工程學系
Department of Electrical and Computer Engineering
公開日期: 2015
摘要: In the paper, we consider limited feedback for a MIMO-OFDM system over a time-correlated multipath fading channel. Due to time correlation, the subcarriers are correlated in both time and frequency. We propose the use of predictive quantization of bit loading (PQB) and subcarrier clustering (SC). Applying PQB on the subcarriers allows us to exploit the time correlation of the channel and adapt the transmission rate according to the channel condition while SC enables us to take advantage of the frequency correlation of the channel. Simulation results are given to demonstrate that the proposed feedback scheme can achieve a good performance due to the exploitation of both time and frequency correlation.
URI: http://hdl.handle.net/11536/136320
ISBN: 978-1-4799-8058-1
期刊: 2015 IEEE INTERNATIONAL CONFERENCE ON DIGITAL SIGNAL PROCESSING (DSP)
起始頁: 384
結束頁: 387
顯示於類別:會議論文