Book excerpt: Unlike most other references on the market, this next-generation resource goes well beyond Bluetooth specifications and thoroughly examines different implementation approaches--as taught by a "master instructor." * Discusses Bluetooth in detail, covering both operational characteristics as well as its use in a wireless communications system * Addresses the coexistence of Bluetooth's with other wireless networks * Provides information on the significant security problems that exist when communicating without wires * Based on 2 very popular and highly effective courses the author has been teaching for more than a year