Full-Diversity Finite-Constellation 4 x 4 Differential STBC Based on Finite Quaternion Groups

摘要：

This paper presents a novel way to construct unitary space-time block codes suitable for differential modulation. The new codes rely on quaternionic algebra to achieve finite constellation. Among these, a particular code with a codebook of size 48 is studied and shown to be differentially decodable by means of two symbol-by-symbol decoders (each symbol having 2 bits) and one larger decoder for a size 16 constellation. Simulations in a realistic WiMAX environment show the proposed code to outperform an optimized size 48 diagonal MPSK code by 1 dB.Ways to counter reduced performance in highly mobile environments are also suggested.

作者: Andrei D.Radulescu Robert A.Calderbank Stuart C.Schwartz

作者单位: Electrical Engineering Department, Princeton University Princeton, NJ 08544, USA

会议类型: 国际会议

会议名称: 2006年IEEE信息理论国际会议(Proceedings of 2006 IEEE Information Theory Workshop ITW06)

会议地点: 成都

会议语种:英文

页码: 443-447

在线出版日期: 2006-10-22（万方平台首次上网日期，不代表论文的发表时间）