Incremental Nth Best Relay Selection with Code Based Relay Construction in Fading Channel

Transmission of data through a channel will be subjected to lot of noises and fading effects. Because of this there will be lot of errors in received data. Taking this into consideration, in this paper, we consider incremental amplify-and-forward (AF) relaying technique which employ the Nth best relay when the best relay is unavailable due to issues such as scheduling or load balancing. We are performing the analysis on a Rayleigh fading channel. In order to overcome the effects of fading and noise, in this paper, we are also incorporating code based relay construction along with interleaving in order to detect and correct errors. According to the analysis, the incremental AF strategy can reduce BER greatly when compared to the conventional direct communication. The incremental AF strategy improves the capacity over other conventional relay selection schemes. The incremental Nth best relay can be useful when considering improving the error rate and bandwidth efficiency at the same time comparing to the conventional direct system.