Coded differential space-time modulation for flat fading channels

TitleCoded differential space-time modulation for flat fading channels
Publication TypeJournal Article
Year of Publication2003
AuthorsLampe, L., R. Schober, and R. F. H. Fischer
JournalWireless Communications, IEEE Transactions on
Pagination582 - 590
Date Publishedmay.
Keywordsbit-interleaved coded modulation, channel capacity, coded differential space-time modulation, coded modulation, computational complexity reduction, differential detection, ergodic channel capacity, flat fading channels, information theory, interleaved codes, modulation coding, multilevel coding, multiple-symbol differential detection, multiuser detection, noncoherent detection, noncoherent reception, performance measure, power efficiency, Rayleigh channels, Rayleigh flat fading channels, simulation results, turbo codes

In this paper, powerful coding techniques for differential space-time modulation (DSTM) over Rayleigh flat fading channels and noncoherent detection without channel state information at the receiver are investigated. In particular, multilevel coding, bit-interleaved coded modulation, and so-called hybrid coded modulation (HCM) are devised and compared. For improved noncoherent reception multiple-symbol differential detection (MSDD) is adapted to DSTM. In order to reduce the computational effort required for MSDD, a low-complexity version of MSDD is applied. Evaluating the ergodic channel capacity for the different schemes as appropriate performance measure, HCM with simplified MSDD is shown to offer a favorable tradeoff between complexity and achievable power efficiency. Simulation results employing turbo codes in properly designed HCM schemes confirm the predictions from information theory.


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