Multi-Dimensional Space-Time Multilevel Codes

Author

Martin, Philippa A. ; Rankin, David M. ; Taylor, Desmond P.

Author_Institution

Dept. of Electr. & Comput. Eng., Canterbury Univ., Christchurch

Volume

5

Issue

11

fYear

2006

fDate

11/1/2006 12:00:00 AM

Firstpage

3287

Lastpage

3295

Abstract

To date there has been little work done on multilevel codes for the space-time environment. In this paper we develop multi-dimensional space-time multilevel codes (ST-MLCs). Several construction methods are proposed, including a coset code approach. The proposed space-time multilevel encoders partition a 2N_t-dimensional signalling space, which spans all N_t transmit antennas. The multi-dimensional partitioning can be designed to reduce the complexity of detection/decoding. We develop a space-time multistage decoder for the proposed ST-MLCs. It allows the complexity of soft decision decoding to be significantly reduced compared to a single level approach. In addition, significant performance gains over a single level approach are obtained

Keywords

antenna arrays; decoding; space-time codes; telecommunication signalling; transmitting antennas; coset code approach; multidimensional space-time multilevel codes; signalling space; soft decision decoding; transmit antennas; Antenna accessories; Block codes; Constellation diagram; Decoding; Interleaved codes; Modulation coding; Parity check codes; Performance gain; Space time codes; Transmitting antennas;

fLanguage

English

Journal_Title

Wireless Communications, IEEE Transactions on

Publisher

ieee

ISSN

1536-1276

Type

jour

DOI

10.1109/TWC.2006.05045

Filename

4027798