A low-complexity noncoherent MAP detector for turbo-coded unitary space-time modulation scheme

Authors:
Yeong-Luh Ueng;Yen-Ming Chen
Affiliations:
National Tsing Hua University, Hsinchu, Taiwan, R. O. C.;National Tsing Hua University, Hsinchu, Taiwan, R. O. C.
Venue:
Proceedings of the 4th International Symposium on Applied Sciences in Biomedical and Communication Technologies
Year:
2011

Citing 9
Cited 0

Turbo codes: principles and applications

Turbo codes: principles and applications
Turbo coded multiple-antenna systems for near-capacity performance

IEEE Journal on Selected Areas in Communications - Special issue on capaciyy approaching codes
Concatenated space-time block coding with trellis coded modulation using a delay processor

IEEE Transactions on Wireless Communications
Space-time block codes from orthogonal designs

IEEE Transactions on Information Theory
Unitary space-time modulation for multiple-antenna communications in Rayleigh flat fading

IEEE Transactions on Information Theory
Systematic design of unitary space-time constellations

IEEE Transactions on Information Theory
Signal design and convolutional coding for noncoherent space-time communication on the block-Rayleigh-fading channel

IEEE Transactions on Information Theory
Orthogonal design of unitary constellations for uncoded and trellis-coded noncoherent space-time systems

IEEE Transactions on Information Theory
A simple transmit diversity technique for wireless communications

IEEE Journal on Selected Areas in Communications

Quantified Score

Hi-index	0.00

Visualization

Abstract

In non-coherent multiple-input multiple-output (MIMO) systems, the conventional noncoherent MAP detector is too complex to be performed if the number of labelling bits conveyed within one single coherence block is high. In order to overcome this difficulty, in this paper, we propose a noncoherent MAP (maximum a posteriori) detector with very low complexity for orthogonally designed USTM (unitary space-time modulation) schemes. In addition, we show that the detected soft values are independent of the extrinsic information fed back from the turbo decoder. As a result, iterative detection and decoding between the noncoherent detector and the turbo decoder can be avoided without performance degradation. Compared to the scheme using the exhaustive-search-based noncoherent MAP detector, the proposed scheme achieves the same error performance, and has a much lower detection complexity.