可扩展性
计算机科学
网络数据包
计算机网络
无线传感器网络
继电器
排队论
排队延迟
可靠性(半导体)
节点(物理)
分布式计算
工程类
功率(物理)
物理
结构工程
量子力学
数据库
作者
Iclia Villordo-Jiménez,Noé Torres-Cruz,Rolando Menchaca-Méndez,Mario E. Rivero-Ángeles
出处
期刊:Sensors
[MDPI AG]
日期:2024-03-22
卷期号:24 (7): 2023-2023
摘要
The reliability and scalability of Linear Wireless Sensor Networks (LWSNs) are limited by the high packet loss probabilities (PLP) experienced by the packets generated at nodes far from the sink node. This is an important limitation in Smart City applications, where timely data collection is critical for decision making. Unfortunately, previous works have not addressed this problem and have only focused on improving the network's overall performance. In this work, we propose a Distance-Based Queuing (DBQ) scheme that can be incorporated into MAC protocols for LWSNs to improve reliability and scalability without requiring extra local processing or additional signaling at the nodes. The DBQ scheme prioritizes the transmission of relay packets based on their hop distance to the sink node, ensuring that all packets experience the same PLP. To evaluate the effectiveness of our proposal, we developed an analytical model and conducted extensive discrete-event simulations. Our numerical results demonstrate that the DBQ scheme significantly improves the reliability and scalability of the network by achieving the same average PLP and throughput for all nodes, regardless of traffic intensities and network sizes.
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