Topics in the performance analysis of wireless communication system

The increasing demand in the area of wireless communications has imposed a certain burden on researchers working in the area of performance analysis. As systems are becoming more complicated, the ability to come up with closed-form expressions that govern the behavior of these systems is becoming more difficult and more tedious. One solution is to try to develop simplified models that capture the main aspects of real systems while lending themselves to tractable performance analysis. Another solution is to try to study the performance of these complex systems in the limits by introducing lower/upper bounds which are usually easier to evaluate. The first part of this work presents new closed-form expressions for the outage probability of cellular mobile radio systems under various fading correlation scenarios. The second part presents lower bounds on the performance of cellular systems equipped with smart antennas that are able to successively suppress the strongest interferers. Also, it studies the effect of many practical issues on the performance of the smart antenna system. The third part develops practical power loading algorithms to improve the performance of wireless systems. Applications to soft handoff and transmit-diversity systems are provided. Finally, the fourth part studies the performance of transmission systems with relays over several fading channel models. Dual-hop as well as multihop systems are studied and a comparison between regenerative and non-regenerative systems is quantified.