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Guest Editorial: Performance Evaluation of Wireless Systems

Welcome to this special issue of SIMULATION: Transactions of the Society for Modeling and Simulation International on Performance Evaluation of Wireless Systems. This special issue is aimed at presenting recent research results in this vital field. The area of wireless systems has witnessed rapid and amazing development in recent years, which make it the greatest growing sector in telecommunications systems. New architectures, protocols, and performance evaluation models have been devised and researched by individuals and organizations worldwide to provide cost-effective and secure solutions, designs, and proper operation. As wireless systems have become more and more ubiquitous, it is necessary to predict and measure their performance. Significant progress has yet to take place to reach full integration of wired and wireless systems, so as to meet the desired quality of service (QoS), security level, and performance. Due to the difficulties posed by the wireless medium and the increased demand for better and cost-effective services, the area of wireless systems is an extremely rich field for research and development. Performance evaluation of such systems is one of these vital research areas. Moreover, these systems have become widespread, with many applications and challenges. However, they are very complex, which means that predicting their performance using analytic modeling, simulation analysis as well as measuring their performance using monitors, and other testing scenarios and techniques are crucial to the proper design, operation, tuning, and capacity planning [1-5]. This special issue ofSIMULATION is dedicated to present state-of-the-art papers in the performance evaluation of wireless systems. We only accepted five papers in this special issue out of many selected extended versions of papers accepted at the 2004 International Symposium on Performance Evaluation of Computer and Telecommunication Systems, SPECTS 2004. This means that these accepted papers have undergone a thorough and critical review process by experts in the field.