This book is intended to be a high-quality textbook that provides a carefully designed exposition of the important aspects of Wireless Sensor Networks. The book provides a thorough coverage of wireless sensor networks, including applications, communication and networking protocols, middleware, security and management. The book is targeted at networking professionals, managers, and practitioners, and government agencies who want to understand the benefits of this new technology and plan for its use and deployment. " Chapter 1. Introduction and Overview of Wireless Sensor Networks." Chapter 2. Commercial and Scientific Applications of Wireless Sensor Networks." Chapter 3. Basic Wireless Sensor Technology." Chapter 4. Wireless Sensors Networks Protocols: Physical Layer." Chapter 5. Medium Access Control Protocols for Wireless Sensor Networks." Chapter 6. Sensors Network Protocols: Routing Protocols." Chapter 7. Transport Control Protocols for Wireless Sensors Networks." Chapter 8. Middleware for Sensor Networks." Chapter 9. Network Management for Wireless Sensor Networks." Chapter 10. Operating Systems for Sensor Networks." Chapter 11. Performance and Traffic Management Issues.