Blind Relay Network with Viterbi Detection

This paper compares the performance of a blind relay communication system with that of a non-blind relay communication system. For a blind system, a differential space-time block code (DSTBC) or a blind Viterbi detection is used, and for a non-blind system, a space-time block code (STBC) is used. Also, this paper takes another blind detection mechanism, the Zhang´s code, and compares its performance with that of the blind Viterbi detection under a Jakes´ fading environment. It was found that the case of a relay closer to the source shows better performance than the case of a relay closer to the destination. It was also observed that the blind Viterbi decoder shows better performance than the Zhang´s code under the Jakes´ fading environment.