The Effect of Correlated Link Shadowing on the Performance of Multihop Cellular Networks

This paper examines and analyzes the impact of correlations that exist in shadow fading between links in multihop cellular networks. Statistical moments of the total interference are derived based on two correlated shadowing models, shadowing model as functions of the spatial loss field and correlated lognormal shadowing. We apply both methods in order to evaluate performance in uplink of multihop CDMA cellular systems. Outage probability is introduced as a QoS parameter. The results show that there is no significant difference between two correlated shadowing models. But, taking into consideration independent shadowing causes an optimistic and unreal performance evaluation which may not useful for deployment of multihop cellular networks in real environments.