Performance Analysis of Adaptive Bit Loading for SFBC-OFDM over WSSUS Multipath Channels

被引：0
|
作者：
Wang Wei-gong [1 ]
Da Xin-yu [1 ]
机构：
[1] Air Force Engn Univ, Telecommun Engn Inst, Xian, Peoples R China
来源：
ISAPE 2008: THE 8TH INTERNATIONAL SYMPOSIUM ON ANTENNAS, PROPAGATION AND EM THEORY, PROCEEDINGS, VOLS 1-3 | 2008年
关键词：
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This paper studies an adaptive modulation technique combined with space-frequency block coded OFDM (SFBC-OFDM) over wide sense stationary uncorrelated scattering (WSSUS) multipath channels. Chow's adaptive bit loading algorithm and Alamouti's diversity scheme are employed in the two transmitter antennas and two receiver antennas SFBC-OFDM. WSSUS multipath channels are discussed. Then scattering function is presented. Simulation results show that adaptive SFBC-OFDM has 1.5 dB advantage compared with fixed modulation SFBC-OFDM. Furthermore, adaptive SFBC-OFDM requires less additional power gain than fixed modulation SFBC-OFDM, which can combat feedback in WSSUS multipath channel.
引用
收藏
页码：1508 / 1511
页数：4
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