Grouped multilevel space-time trellis codes

Author

Baghaie A, M. ; Martin, Philippa A. ; Taylor, Desmond P.

Author_Institution

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

Volume

14

Issue

3

fYear

2010

fDate

3/1/2010 12:00:00 AM

Firstpage

232

Lastpage

234

Abstract

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.

Keywords

space-time codes; transmitting antennas; trellis codes; grouped multilevel space-time trellis codes; higher order modulations; multilayer schemes; transmit antennas; Binary phase shift keying; Convolutional codes; Decoding; Diversity methods; Fading; MIMO; Modulation coding; Receiving antennas; Throughput; Transmitting antennas; MIMO; Multilevel code; Rayleigh fading channel; space time trellis code;

fLanguage

English

Journal_Title

Communications Letters, IEEE

Publisher

ieee

ISSN

1089-7798

Type

jour

DOI

10.1109/LCOMM.2010.03.091591

Filename

5426592