A Novel Transmit Diversity Scheme Based on CR-QOSTBC and MC-CDMA
Space-time block codes (STBCs) play an important role in spatial diversity technologies.The Alamouti scheme provides full diversity, full rate and needs simple separating decoding but is for only two antennas.For more than two antennas, qtasi-orthogonal space-time block codes (QOSTBCs) are able to provide full rate but enjoy only a partial diversity and need pairwise decoding.The recently proposed constellation-rotated QOSTBCs (CR-QOSTBCs) can achieve both full diversity and full rate.In this paper, we propose a novel transmit diversity scheme based on CR-QOSTBC and multi-carrier code division multiple access (MC-CDMA), using four transmit antennas and one receive antenna, which not only provides full diversity and full rate but also uses simple decoding, achieves good performance in frequency selective fading channels due to the ability of diversities in space, time, frequency and coding.The simulation is then complimented to show that the bit error rate (I3ER) performance of CR-QOSTBC-MC-CDMA to is improved distinctly.
comunication and information system space-time block code constellation-rotated quasi-orthogonal space-time block code multi-carrier code division multiple access full rate full diversity
GUO Ai-huang LUO Wei SHANG Xiu-hui CAO Wen-jia
School of Electronics and Information Engineering,Tongji University,Shanghai 200092,hina;State Key L School of Electronics and Information Engineering,Tongji University,Shanghai 200092,hina
国内会议
大连
英文
302-311
2010-08-20（万方平台首次上网日期，不代表论文的发表时间）