在无线传感器网络中,Sink节点的放置和部分连接
1Computer Science and Information Systems, Bradley University, Peoria, IL 61625, USA.
Sensors (Basel, Switzerland)
|November 25, 2023
概括
沉积节点的位置显著影响无线传感器网络 (WSN) 的连接. 部分连接和传感器连接速率对于WSN来说是比完全连接更好的指标,优化了资源节约.
科学领域:
- 计算机科学 计算机科学
- 电气工程 电气工程
- 网络工程 网络工程
背景情况:
- 无线传感器网络 (WSN) 在通信和连接方面面临着挑战.
- 沉没节点的作用,放置和网络资源保护对于WSN性能至关重要.
- 特定应用的要求,包括延迟灵敏度 (hmax),影响网络设计.
研究的目的:
- 在随机的WSN中分析通信和连接问题.
- 评估下沉节点放置对网络连接和传感器连接速率的影响.
- 将部分和完全连接作为WSN的性能指标进行比较.
主要方法:
- 数学建模和理论分析.
- 随机WSN的模拟评估.
- 基于网络参数和 hmax 的部分和完全连接概率的推导和比较.
主要成果:
- 沉积节点的放置严重影响WSN连接;将其从中心移到外围将传感器连接率从98.8%降至72.5%.
- 部分连接和传感器连接率是评估WSN通信能力的更有效的指标,而不是完全连接.
- 连接远程传感器需要更大的能量;连接不到4%的远程传感器增加了1.367倍的能源需求.
- 实现传感器连接率的边际增加 (96%至100%),需要在多路径色环境中大幅增加能源 (538%).
结论:
- 沉积节点的放置是优化WSN连接和资源使用的关键设计参数.
- 部分连接和传感器连接速率为WSN性能提供了更现实的评估.
- 显著的能源开销与实现高连接率有关,特别是对于远程传感器,需要谨慎的设计权衡.
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