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dc.contributor.author Olwal, TO
dc.contributor.author Van Wyk, MA
dc.contributor.author Van Wyk, BJ
dc.date.accessioned 2010-01-22T11:03:43Z
dc.date.available 2010-01-22T11:03:43Z
dc.date.issued 2009
dc.identifier.citation Olwal, TO, Van Wyk. MA and Van Wyk, BJ. 2009. Discrete polyphase matched filtering-based soft timing estimation for mobile wireless systems. International Journal of Electronics, Communications and Computer Engineering, Vol.1(2), pp 123-130 en
dc.identifier.issn 2073-0543
dc.identifier.uri http://hdl.handle.net/10204/3913
dc.description Copyright: 2009 World Academy of Science, Engineering and Technology en
dc.description.abstract In this paper the authors present a soft timing phase estimation (STPE) method for wireless mobile receivers operating in low signal to noise ratios (SNRs). Discrete Polyphase Matched (DPM) filters, a Log-maximum a posterior probability (MAP) and/or a Soft-output Viterbi algorithm (SOVA) are combined to derive a new timing recovery (TR) scheme. The authors apply this scheme to wireless cellular communication system model that comprises of a raised cosine filter (RCF), a bit-interleaved turbo-coded multi-level modulation (BITMM) scheme and the channel is assumed to be memory-less. Furthermore, no clock signals are transmitted to the receiver contrary to the classical data aided (DA) models. This new model ensures that both the bandwidth and power of the communication system is conserved. However, the computational complexity of ideal turbo synchronization is increased by 50%. Several simulation tests on bit error rate (BER) and block error rate (BLER) versus low SNR reveal that the proposed iterative soft timing recovery (ISTR) scheme outperforms the conventional schemes. en
dc.language.iso en en
dc.publisher World Academy of Science, Engineering and Technology en
dc.subject Discrete polyphase matched filters en
dc.subject Maximum likelihood estimators en
dc.subject Soft timing phase estimation en
dc.subject Wireless mobile systems en
dc.subject Wireless cellular communication en
dc.subject Soft-output viterbi algorithm en
dc.title Discrete polyphase matched filtering-based soft timing estimation for mobile wireless systems en
dc.type Article en


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