నైరూప్య

CONCATENATED TCM AND BCH FOR 8- PSK OVER RAYLEIGH AND AWGN CHANNEL

Karthika.K , Prithi Pavale

This paper presents Trellis coded modulation with 8-PSK for Space communication. TCM is more suitable for space communication compared to other existing modulation techniques because of its bandwidth efficiency and better performance over fading channel. In TCM system higher coding gain can be achieved without expanding the bandwidth or increasing the average energy of the signal set. This includes concatenated system in which outer code is BCH and inner code TCM. The proposed concatenated system provides bandwidth efficiency compared to concatenated RS-TCM system. The simulated results show that significant coding gain by the proposed system over Additive White Gaussian Noise (AWGN) and Rayleigh fading channel.