Broadcast capacity of a WSN employing power control and limited range dissemination

Ananth V. Kini, N. Singhal, S. Weber
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引用次数: 1

Abstract

The broadcast capacity of a wireless sensor network (WSN) is defined as the maximum rate at which the network may generate messages intended for distribution to the entire network subject to coverage and delay constraints. Broadcast capacity depends on factors such as topology, collisions, node failures and queueing delays that may be incurred during heavy load conditions. In our previous work, we studied the improvements in efficiency and collision reduction through the use of information coordination (IC) and communication coordination (CC) respectively. In this paper we extend our work in three aspects: (i) we look at a more realistic topology for sensor networks, a Poisson cluster process, (ii) we allow for variable transmission distances as an abstraction of power control, and (iii) messages have a limited dissemination range, implying that each message may only permeate up to a certain distance r from its originator. We quantify the additional improvement in broadcast capacity when power control is added to IC and CC. We also show that broadcast capacity greatly increases when the reach of the message is restricted irrespective of whether IC and/or CC are employed, however the penalty incurred is reduced coverage.
采用功率控制和有限范围传播的无线传感器网络的广播容量
无线传感器网络(WSN)的广播容量被定义为在受覆盖和延迟限制的情况下,该网络可能产生用于分发到整个网络的消息的最大速率。广播容量取决于拓扑结构、碰撞、节点故障和在高负载条件下可能产生的排队延迟等因素。在我们之前的工作中,我们分别研究了通过使用信息协调(IC)和通信协调(CC)来提高效率和减少碰撞。在本文中,我们从三个方面扩展了我们的工作:(i)我们研究了传感器网络的更现实的拓扑结构,泊松聚类过程,(ii)我们允许可变传输距离作为功率控制的抽象,以及(iii)消息具有有限的传播范围,这意味着每个消息只能从其发起者渗透到一定距离r。我们量化了在集成电路和CC中添加功率控制时广播容量的额外改进。我们还表明,无论是否使用集成电路和/或CC,当消息的覆盖范围受到限制时,广播容量都会大大增加,但所招致的惩罚是覆盖范围减少。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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