Pub Date : 2023-12-13DOI: 10.2174/0122103279255197231020060356
Neha, Jasvinder Kaur
In this era of emerging technologies, Mobile Wireless Sensor Network (MWSN) has emerged as a powerful tool for many applications. Applications such as battlefield and traffic surveillance, agriculture and environment monitoring, smart homes and smart cities require a specific protocol to fulfill a specific purpose. WSN is composed of numerous tiny Sensor Nodes (SNs) along with one or more sinks, where sinks have unlimited sources of energy and SNs are battery- operated. SN tasks are to sense the data and transmit it to sink through the formation of dynamic topology. The SNs nearer to the sink rapidly exhaust their energy due to the heavy burden. Due to this, SNs became dead affecting the performance of the network lifespan. To overcome this problem, the concept of MWSN has been proposed. In MWSN, the sink can move from one location to another, and collect data from SNs. With the help of MWSN, the problem of energy holes can be resolved. An energy hole is a problem in which nodes are alive but they are not able to send the data due to low energy left. To overcome this problem, MWSN plays an important role. MSWN can move around the region and collect the data from SNs. In this work, we have proposed a Mobile Sink (MS) that can move on fixed or random locations for data collection from SNs. The comparative analysis of various MS strategies such as MS on boundaries, 4 sojourn locations in the region, random position in the region and fixed path to collect the data has been done. SNs become dead in 2246 rounds in static approach. In the MS boundary approach, all SNs are dead in 2593 rounds. In the sojourn location, it lasts up to 4827. But in MS random and fixed location approaches, all SNs are dead in 11568 and 11513 rounds, respectively. The simulation results depict that the MS strategies having fixed or random positions in the region enhanced the network lifetime 4 to 5 times more than the static sink.
在这个新兴技术的时代,移动无线传感器网络(MWSN)已成为许多应用的有力工具。战场和交通监控、农业和环境监测、智能家居和智能城市等应用需要特定的协议来实现特定的目的。WSN 由无数微小的传感器节点(SN)和一个或多个汇集点组成,汇集点拥有无限的能源,而传感器节点则由电池驱动。传感器节点的任务是感知数据,并通过形成动态拓扑结构将数据传送到汇。由于负担沉重,靠近汇的 SN 很快就会耗尽能量。因此,SN 的死亡会影响网络寿命的性能。为了克服这一问题,人们提出了 MWSN 的概念。在 MWSN 中,Sink 可以从一个地点移动到另一个地点,并从 SN 收集数据。在 MWSN 的帮助下,能量洞问题可以得到解决。能量洞是指节点还活着,但由于能量不足而无法发送数据。为了克服这一问题,MWSN 发挥了重要作用。在这项工作中,我们提出了一种移动 Sink(MS),它可以在固定或随机位置移动,以便从 SN 收集数据。我们对各种 MS 策略进行了比较分析,如在边界上的 MS、区域内的 4 个停留位置、区域内的随机位置以及收集数据的固定路径。在 MS 边界方法中,所有 SN 在 2593 轮中死亡。在巡回定位中,死亡时间长达 4827 轮。仿真结果表明,在区域内采用固定或随机位置的 MS 策略比静态 sink 的网络寿命延长了 4 到 5 倍。
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