A Walk through Content Delivery Networks -- Computer Virus Propagation Models -- Performance Evaluation of Mail Systems -- CPN and QoS Driven Smart Routing in Wired and Wireless Networks -- Modeling and Simulation of Mesh Networks with Path Protection and Restoration -- Wireless Internet: Protocols and Performance -- Performance Models for 2.5/3G Mobile Systems and Networks -- IP-Oriented QoS in the Next Generation Networks: Application to Wireless Networks -- Peer-to-Peer Computing in Mobile Ad Hoc Networks -- Multipath Routing in Mobile Ad Hoc Networks: Issues and Challenges -- Algorithmic Design for Communication in Mobile Ad Hoc Networks -- Performance Management in Dynamic Computing Environments -- Software Performance Modeling Using UML and Petri Nets -- Enabling Simulation with Augmented Reality -- PEPA Nets -- Scheduling in Distributed Systems -- Data Allocation and Scheduling in Disks and Disk Arrays.