Title :
A frequency diversity scheme using linear constellation precoding for V-BLAST OFDM system
Author :
Daiming Qu ; Bo Gui ; Guangxi Zhu ; Zhonglin Chen
Author_Institution :
Huazhong University of Science & Technology
Abstract :
In this paper a VBLAST-OFDM system with linear constellation precoding (LCP) is proposed for wideband wireless communications. Frequency diversity is obtained through the LCP precoding across OFDM subcarriers. Also a joint VBLASTLCP decoder which combines classical V-BLAST successive interference cancellation with Maximum Likelihood decoding for the precoding is proposed. Computer simulation shows that VBLAST-OFDM-LCP has a performance gain of at least 8.5dB at a certain symbol error rate compared with VBLAST-OFDM.
Keywords :
Broadband antennas; Computer simulation; Fading; Frequency diversity; Maximum likelihood decoding; OFDM; Receiving antennas; Transmitting antennas; Wideband; Wireless communication; OFDM; V-BLAST; linear constellation precoding; wideband wireless communications;
Conference_Titel :
Communications, 2004 IEEE International Conference on
Conference_Location :
Paris, France
Print_ISBN :
0-7803-8533-0
DOI :
10.1109/ICC.2004.1312494
