蓝牙散射网的数据传输性能分析

在蓝牙微微网中,主设备决定跳频序列.由于各主设备独立跳频,因此在多个微微网中数据分组会由于跳至同一频隙而产生较高的误包率.文中建立了散射网下数据分组相互干扰的分析模型,在此基础上得出了蓝牙散射网在进行ACL分组传输时的网络吞吐量.针对不同的跳频方式和网络是否全局时隙同步的四种情况对单一类型的分组发送成功率进行了具体的分析,并进一步得出采用混合分组时的网络最大吞吐量,并得出达到最大吞吐量是应当采用的最佳分组及最佳分组的传输延迟.

Throughput of Data Transmission in Bluetooth Scatternet

In a Bluetooth piconet, the Master essentially controls the channel. Due to the absence of coordination between independent Masters while accessing the wireless medium, devices will encounter high packet interference if several piconets are simultaneously operating in the same area. An analytical model of packet interference in Bluetooth Scatternet is presented in the paper. The throughput of data transmission on ACL packets is found. According to different Frequency - hopping modes and network synchronization, packet sending success rate of single packet is analyzed. In the end, the maximal throughput under different data packets is obtained, and the optimal packet and aptimal transmission delay for obtaining the maximal throughput are also found.