Performance analysis and design of STBCs for frequency-selective fading channels

TitlePerformance analysis and design of STBCs for frequency-selective fading channels
Publication TypeJournal Article
Year of Publication2004
AuthorsSchober, R., W. H. Gerstacker, and L. Lampe
JournalWireless Communications, IEEE Transactions on
Pagination734 - 744
Date Publishedmay.
KeywordsBER analysis, block codes, cellular radio, channel coding, diversity reception, enhanced data rates for GSM evolution system, error statistics, fading channels, frequency selective fading channels, GSM system, impulse response coefficients, maximum likelihood sequence estimation, pairwise error probability, receive antennas, space time block codes, space-time codes, transmit antennas

In this paper, space-time block-coded transmission over frequency-selective fading channels is investigated. A lower bound for the pairwise error probability for optimum detection is given. Also, an approximation for the bit-error rate is derived and compared with simulation results for maximum-likelihood sequence estimation (MLSE) for the GSM/EDGE (Enhanced Data Rates for GSM Evolution) system. Furthermore, a novel design rule for space-time block codes (STBCs) for frequency-selective fading channels is provided. A corresponding code is designed and shown to yield higher performance than Alamouti's code. It is demonstrated that for fading channels with L independent impulse response coefficients, STBCs designed for the flat fading channel can achieve at most a diversity order of (NT+L-1)NR if NT transmit antennas and NR receive antennas are used. On the other hand, the maximum diversity order employing the proposed code design rule is LNTNR.


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