Location-Aware Routing Protocol for Scatternet over Bluetooth Radio System

碩士 === 真理大學 === 數理科學研究所 === 91 === Bluetooth is a low-power, low-cost and short-range wireless technology. To achieve the purpose of rapid construction of a connected scatternet, most existing scatternet formation protocol arranges Bluetooth device to alternatively switch between inquiry and inquiry...

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Bibliographic Details
Main Authors: Chih-Min Wang, 王智敏
Other Authors: Chih-Yung Chang
Format: Others
Language:zh-TW
Published: 2003
Online Access:http://ndltd.ncl.edu.tw/handle/82761338546597228601
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Summary:碩士 === 真理大學 === 數理科學研究所 === 91 === Bluetooth is a low-power, low-cost and short-range wireless technology. To achieve the purpose of rapid construction of a connected scatternet, most existing scatternet formation protocol arranges Bluetooth device to alternatively switch between inquiry and inquiry scan mode. The constructed scatternet therefore exists a phenomenon that two devices whose distance is smaller than the radio transmission range cannot communicate with each other due to that they participate different piconets. Another phenomenon existed in the constructed scatternet is that devices whose distance is relative long/short may participate the same/different piconets. These phenomenons result the constructed routing path is not shortest, even applies on scatternet the existing shortest path routing protocols designed for Ad Hoc networks. Such path will consume more power and bandwidth resource and also enlarge the transmission delay. This thesis proposes a location-based routing protocol for Bluetooth scatternet. The proposed protocol utilize location information to construct a shortest path and thus minimizes the transmission delay and saves the power and bandwidth consumptions. In addition, a hybrid routing protocol is proposed to construct a near shortest path in condition that the location information of some devices is unknown. Experimental results show that the proposed routing protocols effectively reduce the route length, transmission delay, and power and bandwidth consumptions, hence improve the scatternet performance.