A Turbo Detection and Sphere-Packing-Modulation-Aided Space-Time Coding Scheme
Alamri, O, YEAP, B-J. and Hanzo, L (2007) A Turbo Detection and Sphere-Packing-Modulation-Aided Space-Time Coding Scheme. IEEE Transactions on Vehicular Technology, 56, (2), 575-582.
Arecently proposed space-time block-coding (STBC) signal-construction method that combines orthogonal design with sphere packing (SP), referred to here as STBC-SP, has shown useful performance improvements over Alamouti’s conventional orthogonal design. In this contribution, we demonstrate that the performance of STBC-SP systems can be further improved by concatenating SP-aided modulation with channel coding and performing demapping as well as channel decoding iteratively. We also investigate the convergence behavior of this concatenated scheme with the aid of extrinsic-information-transfer charts. The proposed turbo-detected STBC-SP scheme exhibits a “turbo-cliff” at Eb/N0 = 2.5 dB and provides Eb/N0 gains of approximately 20.2 and 2.0 dB at a bit error rate of 10−5 over an equivalent throughput uncoded STBC-SP scheme and a turbo-detected quadrature phase shift keying (QPSK) modulated STBC scheme, respectively, when communicating over a correlated Rayleigh fading channel. Index Terms—EXIT charts, iterative demapping, multidimensional mapping, space-time coding, sphere packing, turbo detection.
|Divisions:||Faculty of Physical and Applied Science > Electronics and Computer Science > Comms, Signal Processing & Control
|Date Deposited:||19 Apr 2007|
|Last Modified:||21 Aug 2012 03:52|
|Contributors:||Alamri, O (Author)
YEAP, B-J. (Author)
Hanzo, L (Author)
|Further Information:||Google Scholar|
|ISI Citation Count:||15|
|RDF:||RDF+N-Triples, RDF+N3, RDF+XML, Browse.|
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