蓝牙Ad Hoc网络的路由实现及优化

为了在蓝牙系统实现多跳的移动Ad Hoc网络,考虑到蓝牙设备存储容量较小、处理能力较弱的缺点,根据蓝牙主从通信、轮询接入以及时分双工的技术特点,给出了蓝牙Ad Hoc网络的路由协议设计思想以及实现方法.分析和仿真的结果表明:对蓝牙微微网中设备的MAC地址和LocID增加一位可以有效地解决网络中存在主从复合节点单元时可能会引起的路由混淆问题;主从设备各自维护本微微网内所有设备的属性可以显著地减少路由发现的时间并且增加路由发现的概率.该方法可以很好地解决蓝牙节点不能作为一个独立的Ad Hoc节点工作的问题.

Routing optimization and realization of Ad Hoc network based on Bluetooth

To implement multi-hop mobile Ad Hoc networks among Bluetooth systems, the design rationale and implementation method of a route protocol for Bluetooth Ad Hoc networks is presented. This idea is based on the considerations of Bluetooth devices' little memory capacity and weak handling capability and according to Bluetooth's technical characteristics of master-slave communication, polling access and time-division duplex. Analysis and simulation results show the following facts: route confusion problems possibly caused by existing master-slave compound nodes can be effectively figured out by increasing one bit to MAC addresses and LocID of devices in Bluetooth piconets; route-discovery time can be obviously decreased and the discovery probability can be increased if master and slave devices respectively maintain all the device properties in their own piconets. This solution can well solve the problem that a Bluetooth node cannot act as an independent Ad Hoc node.