Performance Analysis of MIMO with Amplify and Forward Relay Network for Mobile to Mobile Fading Channel Model

Wireless relaying is essential to provide reliable transmission, high throughput and broad coverage for wireless networks in a variety of applications. In a cellular environment a relay can be used to overcome shadowing effect due to obstacles. In wireless communication, multiple-antenna systems provide higher rate data transmission than a single-antenna system in a scattered environment. This paper analyses capacity of MIMO with two hop relay systems for mobile to mobile fading channel model (M2M), in which NLOS (Non-line-sight) propagation conditions are assumed from the source mobile station to mobile relay and also from mobile relay to destination station. A non regenerative amplify and forward (AF) relay is used to optimize the capacity between the source and destination, and optimal relaying scheme is compared with few other alternative relaying schemes in terms of capacity for realistic channel model. It is found that the capacity offered by optimal relaying scheme is better than other relaying systems for ideal and realistic channel model.