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Performance and distance spectrum of space-time codes in fast rayleigh fading channels

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3 Author(s)
Myung-kwang Byun ; Samsung Electron. Co. Ltd., Suwon ; Daeyoung Park ; Byeong Gi Lee

In this paper, we analyze the performance of spacetime codes and propose a distance spectrum computation method in fast Rayleigh fading channels. We first derive a new FER upper bound using the union bound and the PEP upper bound in the fast fading environment. The derived FER upper bound is very accurate, requires only the distance spectrum of the spacetime code, and takes a closed-form expression. Then we propose a distance spectrum computation method of space-time codes in fast fading channels, which exploits the symmetric property of the error state diagram in space-time trellis coded MPSK modulation to reduce the computation complexity. Numerical results illustrate that the derived FER bound is tight enough to estimate the performance of space-time codes in fast fading channels with sufficient accuracy.

Published in:

Communications, IEEE Transactions on  (Volume:56 ,  Issue: 12 )

Date of Publication:

December 2008

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