The Research of CR's Application for Bluetooth Network

摘要

Bluetooth is a low power, short range and promising wireless technology but has limited resources, and encounter the interference from other wireless systems and other Bluetooth piconets. As a flexible, efficient and reliable spectrum access by adapting the radio's operating characteristics to the real-time conditions of the environment, cognitive radio technology is apply in Bluetooth network. This paper discussed the interference and the coexistence mechanism of Bluetooth network, and analysis the necessity of CR application in Bluetooth. Moreover, a cognitive frequency hopping (CFH) scheme is described, and for resolve multi-relays problem a cognitive relay selection method based on channel quality detection is proposed.