蓝牙网络的带宽容量分析

Bandwidth Capacity Analysis for Bluetooth Networks

目前,无线个人域网(WPAN)的发展已经吸引了人们的特别关注,其中的蓝牙技术就是一种新兴的WPAN技术。蓝牙是一种短距离的无线通信技术,它的带宽资源非常有限,因此合理利用蓝牙网络的带宽以及有效地分配带宽资源就成为了目前蓝牙网络发展的一个重要方面。该文在介绍蓝牙网络、比较蓝牙网络与IEEE802.11无线局域网(WLAN)的基础上,对蓝牙网络的容量进行了定量分析,并分析了其网络模型,给出了链路的容量条件。此外,还分析了无线网络在资源分配时所使用的流量模型。这两个模型的相同之处就在于都可以通过凸形优化问题来解决容量的分配。

Recently,more and more people have paid particular attention to the developments of Wireless Personal Area Network(WPAN)that includes the rising Bluetooth technology.Bluetooth is a wireless communication technology with short transmission range.Bandwidth of Bluetooth network is so limited that it is an important aspect of developing Bluetooth network to make use of Bluetooth bandwidth reasonably and to assign the bandwidth efficiently.This paper introduces Bluetooth network and compares it with IEEE802.11WLAN.And quantitative analysis of Bluetooth capacity has been given in this paper which deals with the network model of Bluetooth system and the capacity constraints of a link.In addition the paper analyzes the flow model which wireless network needs when allocating the resource.This model is similar to the former,that is the network model of Bluetooth system,in solving the capacity allocation through convex optimization problem.