Differential Transmit Diversity Based on Quasi-Orthogonal Space-Time Block Code
Information Theory
2008-06-23 v1 math.IT
Abstract
By using joint modulation and customized constellation set, we show that Quasi-Orthogonal Space-Time Block Code (QO-STBC) can be used to form a new differential space-time modulation (DSTM) scheme to provide full transmit diversity with non-coherent detection. Our new scheme can provide higher code rate than existing DSTM schemes based on Orthogonal STBC. It also has a lower decoding complexity than the other DSTM schemes, such as those based on Group Codes, because it only requires a joint detection of two complex symbols. We derive the design criteria for the customized constellation set and use them to construct a constellation set that provides a wide range of spectral efficiency with full diversity and maximum coding gain.
Keywords
Cite
@article{arxiv.0806.3317,
title = {Differential Transmit Diversity Based on Quasi-Orthogonal Space-Time Block Code},
author = {Chau Yuen and Yong Liang Guan and Tjeng Thiang Tjhung},
journal= {arXiv preprint arXiv:0806.3317},
year = {2008}
}