Optimal Relay Location for Asymmetric Fading Channels in the Cellular Network

Relay system attracts increasing research attention for Multihop Wireless Network, and then RSs location is a vital optimization variable to richly exploit the advantages of adopting RSs. In this paper, we aim to resolve the optimal location of RSs in a two-hop network to maximize system capacity. We first derived a tight close-form approximation of ergodic capacity and outage probability over the asymmetric fading channel with interference in the three-terminal relay system. After that the expression of system capacity is obtained. Lastly, the Monte-Carlo simulations and numerical analyses are performed to evaluate the performance to acquire the optimal location of RSs.