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

Abstract

In this paper, the performance of turbo coded signals are investigated over a new channel

model, denoted as 1± Dn / Partial Response Fading Channels (PRFC) with imperfect phase

reference. The combined effects of the 1± Dn / PRFC and nonideal coherent receiver on the phase

of the received amplitude and of a noisy carrier reference are considered, each modelled by the

Rician and Tikhonov distributions respectively. As an example, the jitter performance of turbo coded

signals 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 numerical

results clearly demonstrate the error performance degradation due to both amplitude fading and

phase noise process.

KEY WORDS: Turbo codes; Partial Response Fading Channel; Imperfect Phase Reference

Keywords

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