Distance spectrum analysis of space-time trellis-coded Modulations in quasi-static Rayleigh-fading channels |
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Authors: | Aktas D. Fitz M.P. |
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Affiliation: | Dept. of Electr. & Electron. Eng., Univ. of Melbourne, Vic., Australia; |
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Abstract: | In this correspondence, we propose an algorithm for computing the distance spectrum of a space-time trellis code achieving maximal diversity gain in quasi-static fading channels. We further present a state reduction technique for trellis codes that can reduce the complexity of the distance spectrum computation. We provide numerical results supporting the empirical evidence that a truncated union bound obtained from the distance spectrum provides an accurate characterization of the relative performance ordering of different space-time trellis codes and, therefore, it offers a tool for better space-time trellis code design. |
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