This article describes the vision and goals of the Bluetooth program and introduces the radiobased technology. I. Vision

Abstract: A wireless network system based on an infrared and Laser scanning physical token ring architecture (W-PTRS) was designed, built, and tested successfully. The network provides a different way of utilizing the concept of token ring network but with a higher efficiency related to the speed of data transfer and the ability to parallel process client–server requests leading to a new concept of token ring system, which will not fail simply because of ring breakage. The study proposes a new wireless communication protocol, which is neither IEEE802.11 nor Bluetooth. This newly developed protocol could prove to be an excellent communication media if supported by industry. If implemented, this wireless system will provide an alternative but efficient way of wireless communication.

This paper describes design techniques for RF CMOS receivers operating in the 2.4-GHz band. A direct-conversion receiver targetting spread-spectrum wireless LAN applications employs partial channel selection filtering, dc offset removal, and baseband amplification. Fabricated in a 0.6- #m CMOS technology, the receiver achieves a noise figure of 8.3 dB, IP 3 of ,9 dBm, IP 2 of +22 dBm, and voltagegain of 34 dB while dissipating 80 mW from a 3-V supply. Dynamic range and linearity requirements of A/D converters used in RF receivers are also presented. I. INTRODUCTION Wireless local area networks(WLANs) in the 2.4-GHz range have rapidly emerged in the consumer market. Providing flexibility and reconfigurability, WLAN standards allow data rates of several megabits per second and serve as high-speed links in office buildings, hospitals, factories, etc. For high-volume portable applications such as laptop computers, both cost and power dissipation of WLAN transceivers become critical, ne...

This paper proposes two architectures for the CATVbased PCS system.In the first architecture, each base station is equipped with

ea, we would like to see a wireless solution that brings all these technologies in different sectors together and at the same time provides a universal and ubiquitousconnectivity solution between computing, communication and supporting devices. Bluetooth is an effort by a consortium of companies to realize this vision. Formed in February 1998 by mobile telephony and computing leaders Ericsson, IBM, Intel, Nokia, and Toshiba, the Bluetooth special interest group (SIG) is designing a royalty-free, technology specification where each of the founding companies has a significant stake in enabling this vision. We believe that Bluetooth can revolutionize wireless connectivity for personal and business mobile devices, enabling seamless voice and data communication via short-range radio links and allowing users to connect a wide range of devices easily and quickly, without the need for cables, expanding communications capabilities for mobile computers, mobile phones and other mobile devices, b

This article describes the vision and goals of the Bluetooth program and introduces the radiobased technology