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Performance of 4- and 8-State TCM Schemes with Asymmetric 8-PSK in Fading Channels

Subramaniam, Venkata L and Rajan, Sundar B and Bahl, Rajendar (2000) Performance of 4- and 8-State TCM Schemes with Asymmetric 8-PSK in Fading Channels. In: IEEE Transactions on Vehicular Technology, 49 (1). pp. 211-219.


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For Rayleigh fading channels, Ricean fading channels with a small parameter and shadowed Rician channels with the code design criteria are to maximize the effective length as well as the minimum product distance of the code. In this paper, we use two different asymmetric 8-PSK signal sets in 4-state and I- state rate 2/3 trellis-coded modulation (TCM) schemes and show performance gain over TCM schemes with symmetric 8-PSK constellations. The performance gain is due to an increase in the minimum product distance compared to that of the best known TCM schemes of comparable states using symmetric 8-PSK signal sets while the effective length remains same. Simulation is performed over the Rayleigh, Ricean, and shadowed Rician fading channels to demonstrate the performance gain of the asymmetric 8-PSK TCM schemes over the symmetric 8-PSK TCM.

Item Type: Journal Article
Publication: IEEE Transactions on Vehicular Technology
Publisher: IEEE
Additional Information: ©2000 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Keywords: Asymmetric phase shift keying;fading channels;trellis-coded modulation
Department/Centre: Division of Electrical Sciences > Electrical Communication Engineering
Date Deposited: 27 Dec 2004
Last Modified: 19 Sep 2010 04:15
URI: http://eprints.iisc.ac.in/id/eprint/1745

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