• DocumentCode
    1191470
  • Title

    Improvement of noncoherent orthogonal coding by time overlapping

  • Author

    Raphaeli, D.

  • Author_Institution
    Dept. of Electr. Eng., California Inst. of Technol., Pasadena, CA, USA
  • Volume
    141
  • Issue
    5
  • fYear
    1994
  • fDate
    10/1/1994 12:00:00 AM
  • Firstpage
    309
  • Lastpage
    311
  • Abstract
    A simple way to increase the performance of noncoherent orthogonal coding is suggested. The idea is to overlap the transmitted symbols in time using an appropriate set of symbols. The best upper bound of the possible performance improvement in terms of Eb/N0 when transmitting over the AWGN channel is proven to be M/(M-1). An example of a set of orthogonal symbols which can be overlapped to achieve this bound is the Walsh functions. The theory is a generalisation of the relation which exists between binary FSK and differential PSK for M-ary orthogonal noncoherent modulation
  • Keywords
    Gaussian channels; Walsh functions; block codes; differential phase shift keying; frequency shift keying; modulation coding; AWGN channel; BFSK; DPSK; M-ary orthogonal noncoherent modulation; Walsh functions; binary FSK; block orthogonal coding; differential PSK; noncoherent orthogonal coding; orthogonal symbols; time overlapping; upper bound;
  • fLanguage
    English
  • Journal_Title
    Communications, IEE Proceedings-
  • Publisher
    iet
  • ISSN
    1350-2425
  • Type

    jour

  • DOI
    10.1049/ip-com:19941332
  • Filename
    329908
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1191470