Grouped Multilevel Space-Time Trellis Codes

作     者：Baghaie A, Marjan Martin, Philippa A. Taylor, Desmond P. 

作者机构：Univ Canterbury Dept Elect & Comp Engn Christchurch 1 New Zealand 

出 版 物：《IEEE COMMUNICATIONS LETTERS》 (IEEE Commun Lett)

年 卷 期：2010年第14卷第3期

页      面：232-234页

核心收录：

学科分类：0810[工学-信息与通信工程] 0808[工学-电气工程] 08[工学] 

主　　题：Multilevel code space time trellis code Rayleigh fading channel MIMO 

摘      要：Space-time trellis codes (STTCs) generally provide coding and diversity gains, but only transmit one data symbol per time slot. Using higher order modulations incurs high decoding complexity and lengthy code searches. Multi-layer schemes using multiple STTCs over subgroups of antennas provide higher throughput, but require as many receive as transmit antennas and have reduced diversity gains. Here, we develop grouped multilevel STTCs that can provide the high throughput of multi-layered schemes while realizing larger diversity gains. Any number of receive antennas can be used. An example is shown that achieves 6 bits/sec/Hz using 16-QAM and 4 transmit antennas.