Coding and Modulation Tradeoffs for Limiter-Discriminator Based CPM Transceivers in a Rayleigh Fading Channel

David K. ASANO  Subbarayan PASUPATHY  Ryuji KOHNO  

IEICE TRANSACTIONS on Communications   Vol.E83-B   No.8   pp.1896-1899
Publication Date: 2000/08/25
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: Special Section LETTER (Special Issue on Personal, Indoor and Mobile Radio Communications)
CPM,  limiter-discriminator,  Rayleigh fading,  coding,  

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Coding and modulation tradeoffs for limiter-discriminator based CPM transceivers are examined in Rayleigh, fast fading environments. Comparisons are made on the basis of a fixed bandwidth to information rate ratio, so coded schemes and uncoded schemes can be compared fairly. It is shown that using the proper balance of modulation and coding is important to achieve good performance. It is found that combining bandwidth efficient modulation with convolutional coding achieves better performance than trellis coded modulation (TCM). The increase in performance as the code complexity is increased is also found to be larger for convolutional coding than for TCM.