The bestselling first edition of The Communications Handbook provided the most comprehensive reference ever published for this rapidly advancing field. The second edition goes even further and has been thoroughly revised and updated to reflect the many key developments of the last three years. The revisions include many new chapters, significant expansion of the Wireless section, and extensive updates of the remaining chapters. Now more than ever, this handbook belongs on the shelf of every engineer in the many disciplines related directly or indirectly to the field of communications.