On the impact of imperfect cophasing in uncoded and LDPC-coded EGC receivers over generalized fading channels

Goran T. Djordjevic, Ivan B. Djordjevic, George K. Karagiannidis

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We study the performance of unbalanced partially coherent uncoded and low-density parity-check (LDPC)-coded equal gain combining (EGC) receiver operating over generalized α-μ fading channels, when the binary phase-shift keying (BPSK) and quaternary phase-shift keying (QPSK) are used. We determine the bit-error ratio (BER) performance degradation due to the imperfect reference signal recovery, receiver unbalancing and fading. Furthermore, we design large girth quasi-cyclic LDPC code with high code rate, suitable for use in communications over generalized fading channels. The proposed LDPC code does not exhibit the error floor phenomena, in the region of interest, even in the presence of imperfect cophasing and receiver unbalances.

Original languageEnglish (US)
Title of host publication2009 IEEE Wireless Communications and Networking Conference, WCNC 2009 - Proceedings
DOIs
StatePublished - Sep 22 2009
Event2009 IEEE Wireless Communications and Networking Conference, WCNC 2009 - Budapest, Hungary
Duration: Apr 5 2009Apr 8 2009

Publication series

NameIEEE Wireless Communications and Networking Conference, WCNC
ISSN (Print)1525-3511

Other

Other2009 IEEE Wireless Communications and Networking Conference, WCNC 2009
CountryHungary
CityBudapest
Period4/5/094/8/09

Keywords

  • Bit error rate
  • Equal gain combining
  • Low-density parity-check (LDPC) codes
  • Phase error
  • Phase-shift keying

ASJC Scopus subject areas

  • Engineering(all)

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  • Cite this

    Djordjevic, G. T., Djordjevic, I. B., & Karagiannidis, G. K. (2009). On the impact of imperfect cophasing in uncoded and LDPC-coded EGC receivers over generalized fading channels. In 2009 IEEE Wireless Communications and Networking Conference, WCNC 2009 - Proceedings [4917856] (IEEE Wireless Communications and Networking Conference, WCNC). https://doi.org/10.1109/WCNC.2009.4917856