Title | Coded differential space-time modulation for flat fading channels |
Publication Type | Journal Article |
Year of Publication | 2003 |
Authors | Lampe, L., R. Schober, and R. F. H. Fischer |
Journal | Wireless Communications, IEEE Transactions on |
Volume | 2 |
Pagination | 582 - 590 |
Date Published | may. |
ISSN | 1536-1276 |
Keywords | bit-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 |
Abstract | 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. |
URL | http://dx.doi.org/10.1109/TWC.2003.811192 |
DOI | 10.1109/TWC.2003.811192 |