Distributed Space-Time Codes with Reduced Decoding Complexity
- 1 July 2006
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- p. 542-546
- https://doi.org/10.1109/isit.2006.261775
Abstract
We address the problem of distributed space-time coding with reduced decoding complexity for wireless relay network. The transmission protocol follows a two-hop model wherein the source transmits a vector in the first hop and in the second hop the relays transmit a vector, which is a transformation of the received vector by a relay-specific unitary transformation. Design criteria is derived for this system model and codes are proposed that achieve full diversity. For a fixed number of relay nodes, the general system model considered in this paper admits code constructions with lower decoding complexity compared to codes based on some earlier system modelsKeywords
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