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New full-diversity high-rate space-time block codes based on selective power scaling | IEEE Conference Publication | IEEE Xplore

New full-diversity high-rate space-time block codes based on selective power scaling


Abstract:

We design a new rate-5/4 full-diversity orthogonal STBC for QPSK and 2 transmit antennas by enlarging the signalling set from the set of quaternions used in the Alamouti ...Show More

Abstract:

We design a new rate-5/4 full-diversity orthogonal STBC for QPSK and 2 transmit antennas by enlarging the signalling set from the set of quaternions used in the Alamouti [1] code. Selective power scaling of information symbols is used to guarantee full-diversity while maximizing the coding gain and minimizing the transmitted signal peak-to-minimum power ratio. The optimum power scaling factor is derived using two equivalent criteria and shown to outperform schemes based on only constellation rotation while still enjoying a low-complexity ML decoding algorithm. Extensions to the case of 4 transmit antennas are reported in [4].
Date of Conference: 04-08 September 2006
Date Added to IEEE Xplore: 30 March 2015
Print ISSN: 2219-5491
Conference Location: Florence, Italy

References

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