PERFORMANCE OF TURBO CODED SIGNALS OVER PARTIAL RESPONSE FADING CHANNELS WITH IMPERFECT PHASE REFERENCE

In this paper, the performance of turbo coded signals are investigated over a new channelmodel, denoted as 1± Dn / Partial Response Fading Channels (PRFC) with imperfect phasereference. The combined effects of the 1± Dn / PRFC and nonideal coherent receiver on the phaseof the received amplitude and of a noisy carrier reference are considered, each modelled by theRician and Tikhonov distributions respectively. As an example, the jitter performance of turbo codedsignals are evaluated over 1+ D/ PRSC channel with different fading parameter K, effective signalto-noise ratio in the carrier tracking loop a, iteration number and data block size N. The numericalresults clearly demonstrate the error performance degradation due to both amplitude fading andphase noise process.KEY WORDS: Turbo codes; Partial Response Fading Channel; Imperfect Phase Reference