In the past decades, progress in microelectronics and VLSI technology has f
ostered the widespread use of computing and communication applications in p
ortable electronic devices. On this paper, we review the Bluetooth technolo
gy, a new universal radio interface enabling electronic devices to connecti
ons. Motivations for the air interface design and radio requirement decisio
ns are discussed. Frequency hopping, interface resistance, and the concepts
of ad hoc connectivity and scatternets are explained in detail. Furthermor
e, Bluetooth characterisitics enabling low-cost single-chip implementations
and supporting lo power consumption are discussed.