This book meets the need for a relatively short yet self-contained text for under-graduate/postgraduate courses in Electro-nics and Communication Engineering. The text focuses on the fundamentals of the subject and gives the student an overview of the salient features of first and second generation wireless cellular systems, alongwith those perceived for the third generation. It identifies the problems that cause information loss in point-to-point signal transmission through the wireless channels, and discusses techniques suitable for minimizing it. The book covers wireless communications in a cellular setting, treating the ramifications in terms of capacity maximization, support for multi-user transmissions, mobility manage-ment to facilitate user roaming, and global information delivery through wireless/wireline interworking. It organizes material in a way that is most conducive to teaching and learning the salient features and apply what is learnt through sample problems.