Analysis on Inter-Relay Interference in Chirp-Based Two-Path Successive Relaying Protocol

A two-path successive relaying (TPSR) protocol may cause inter-relay interference (IRI) due to simultaneous transmission between the relays. In this paper, we consider multiple linear chirps which can adjust cross-correlation coefficient (CCC) according to separating bandwidth, and propose an inter-relay CCC (IR-CCC) concept to mitigate the IRI effect. From simulation results, we conclude that the proposed method can mitigate the IRI of the TPSR protocol and improve transmission performance.