Performance analysis of relay transmission: symbol error rate of STBC-CIODs

Abstract

In this paper, a symbol error rate (SER) study is presented for the dual-hop relay networks employing space-time block code from coordinate interleaved orthogonal design (STBC-CIOD), where a relay with either decode-and-forward (DF) or amplify-and-forward (AF) protocol is equipped with multiple antennas. More specifically, we provide the union upper and lower bounds on the average SER by deriving an accurate closed-form formula for the corresponding symbol pairwise error rate (SPER). Also, the asymptotic diversity order is analyzed. The theoretically derived bounds are in good agreement with the simulation results. Also, we analyze a SER of the multi-hop relay network employing STBC-CIOD, where a source, a destination, and multiple relays with DF protocol are equipped with two antennas. Especially, the union upper and lower bounds on the average SER and the asymptotic diversity order are provided by deriving an accurate closed-form formula for the corresponding symbol pairwise error rate (SPER). We demonstrate that the theoretically derived bounds are in good agreement with the simulation results.