Communications and Networking

This book has twenty one chapters that are authored by researchers across the world. Each chapter introduces not only a basic problem in communications and networking but also describes approaches to the problem. The data in most chapters are based on published research results and provide insights on the problems of the relevant chapters. Most chapters in this book also provide references for the relevant topics and interested readers might fi nd these references useful if they would like to explore more on these topics.

Several chapters of this book focus on issues related to Orthogonal Frequency-Division Multiplexing (OFDM). For example, chapter 1 and chapter 2 are on channel estimation for OFDM-related systems. Chapter 3 is on cooperative relays in OFDM systems. Chapter 4 introduces some recent results on packet separation in OFDM based random access wireless networks. Chapter 4 is on sub-carrier matching and power allocation in oFDM-based multihop systems. Chapter 6 presents some results on performance evaluation of OFDM related systems.