蓝牙多跳Ad Hoc网络的构建与实测分析

Development and testing analysis of multi-hop Ad Hoc based on Blutooth

针对Ad Hoc网络和基于蓝牙的无线个域网(W PAN)的技术特点,将蓝牙个域网应用模型中单个微微网(Piconet)的应用扩展到基于分布网(Scatternet)的应用,并将其定义的网络接入点场景和Ad Hoc组网场景综合,构建了多跳的蓝牙Ad Hoc网络,提出了一个蓝牙设备通过无线GPRS MODEM实现移动接入因特网的应用架构,实现了基于B lueZ的蓝牙个域网接入的实验演示系统.给出了实验模型和协议栈结构,设计了实测方法,最后给出实测结果及其分析.测试结果表明,即使在3跳传输的情况下,蓝牙Ad Hoc网络内部的数据传输速率仍然大于GPRS的数据传输速率,可以完全满足GPRS无线接入的速率要求.

The characteristics of Ad Hoc network and WPAN （wireless personal area network） system based on Bluetooth technology are described and the Bluetooth WPAN applications from one piconet to scatternet are expanded. A multi-hop Bluetooth Ad Hoc network is constructed combining the network access points scenario with group Ad Hoc networks scenario defined by Bluetooth PAN （personal area network ） profile. An application frame that a Bluetooth device accesses Internet through the GPRS （general packet radio service） modem is also presented and the Bluetooth PAN access experiment system based on BlueZ Bluetooth protocol has been completed. The experiment model, protocol structure, design of experiment methods and the results of experiment and testing analysis are shown in this paper. The testing results show that the data rate of Bluetooth Ad Hoc network is more than that of GPRS even in the case of three-hop communication, and it can completely meet the data rate demand to access wireless GPRS network.