Efficient Communication Over the Discrete‐Time Memoryless Rayleigh Fading Channel with Turbo Coding/Decoding
- 12 September 2000
- journal article
- Published by Wiley in European Transactions on Telecommunications
- Vol. 11 (5) , 475-485
- https://doi.org/10.1002/ett.4460110505
Abstract
Communication over the discrete time memoryless Rayleigh fading channel is investigated. Codes achieving bit error rate (BER) lower than 10‐4at bit energy over the noise spectral density ratio (Eb/No) of 1 to 2dB from the channel capacity limit were found with coding rates of 0.05 to 0.36 bits per channel use. Similar codes with rates of up to 0.57 also performed reasonably close to the capacity limit. The codes are serial concatenation of turbo code and a modulation code such as Pulse Position Modulation (PPM). The receiver is based on joint iterative decoding of the turbo code and the modulation code. Information theoretic arguments are used to form guidelines for code design and to estimate performance of the iterative decoder.Keywords
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