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Space-time codes with full antenna diversity using weighted nonbinary repeat-accumulate codes
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- Authors
- Jong-Ee Oh, Kyeongcheol Yang
- Issue Date
- 2003-11
- Citation
- IEEE Transactions on Communications, v.51, no.11, pp.1773-1778
- ISSN
- 0090-6778
- Publisher
- IEEE
- Language
- English
- Type
- Journal Article
- Abstract
- Like turbo codes, repeat-accumulate codes have remarkably good performance when r ?돟 3, where r is the number of repetition times. In this letter, we present space-time codes with full antenna diversity using "weighted" nonbinary repeat-accumulate codes. Compared with the space-time turbo codes in Liu et al. and Su et al., the main advantage of this new scheme is to construct space-time codes with full diversity for any m ?돞 r and any length of frame without searching for interleavers, where m is the number of transmit antennas. These space-time codes have rate m/r and so, have full rate when m = r. Furthermore, they have an efficient decoding based on the message passing algorithm.