Concatenation of space-time block codes and "turbo"-TCM
- 20 January 2003
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
Abstract
For high data rate transmission over wireless fading channels space-time block codes provide the maximal possible diversity advantage for multiple transmit antenna systems with a very simple decoding algorithm. To achieve also a significant coding gain space-time block codes have to be concatenated with an outer code. We derive a symbol by symbol MAP decoding rule for space-time block codes. We describe two schemes for "turbo"-TCM which have been shown to achieve decoding results close to the Shannon limit in AWGN channels. These turbo-TCM schemes are concatenated to space-time block codes. The MAP decoding algorithm is described. We also discuss a feedback to the space-time block decoder. Significant coding gain in addition to the diversity advantage is shown to be achieved while the decoding complexity is mainly determined by the trellis complexity of the outer code.Keywords
This publication has 6 references indexed in Scilit:
- A novel bandwidth efficient coding scheme employing turbo codesPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- Trellis-coded modulation and transmit diversity: design criteria and performance evaluationPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- Space-time block codes from orthogonal designsIEEE Transactions on Information Theory, 1999
- Space-time codes for high data rate wireless communication: performance criterion and code constructionIEEE Transactions on Information Theory, 1998
- A simple transmit diversity technique for wireless communicationsIEEE Journal on Selected Areas in Communications, 1998
- Optimal decoding of linear codes for minimizing symbol error rate (Corresp.)IEEE Transactions on Information Theory, 1974