This book is a compilation of recent and most popular innovations from the lowest layers to the upper layers of wireless communication networks and consists of "real-time" research developments. The information in this book has been systematically organized in order to make it easily accessible to the readers of all levels. It also preserves the balance between the recent research results and their theoretical support. A huge variety of new techniques in this field are investigated in this book. The authors attempt to present these topics in detail under the following sections wireless communication performance analysis - tools and methods, next generation communication technologies, biological effects of wireless communication, and wireless sensor networks and MANETS. Intelligent and reader-friendly elucidations are provided in this book to serve the readers of all levels, ranging from knowledgeable and practicing communication engineers to beginners or professional researchers.