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Lookup NU author(s): Emeritus Professor Rolando Carrasco
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In this paper, we investigate in detail the performance of iterative demapping and decoding techniques over quasi-static fading channels both with and without antenna diversity. In particular, we consider the effect on the system performance of various mapping schemes, different coding schemes, the interleaver size as well as space diversity. Results demonstrate that over quasi-static fading channels characterized by significant antenna diversity, mappings traditionally optimized for iterative receivers (e.g., Boronka mapping) outperform mappings more appropriate for non-iterative receivers (e.g., Gray mapping). In contrast, over quasi-static fading channels characterized by limited antenna diversity, Gray mapping always outperform Boronka mapping for all Eb/N0 and all iterations. Strikingly, this situation is in sharp contrast to that in the AWGN case. We note that we can further improve the performance of non-iterative systems (e.g., Gray mapping) having limited antenna diversity by increasing the memory size and removing the interleaving. © 2007 IEEE.
Author(s): Carson WR, Chatzigeorgiou I, Wassell IJ, Rodrigues MRD, Carrasco R
Publication type: Conference Proceedings (inc. Abstract)
Publication status: Published
Conference Name: IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC
Year of Conference: 2007
Pages: 1-5
Publisher: IEEE
URL: http://dx.doi.org/10.1109/PIMRC.2007.4394441
DOI: 10.1109/PIMRC.2007.4394441
Library holdings: Search Newcastle University Library for this item
ISBN: 9781424411443
