On the Delay Performance Analysis in A Large-Scale Wireless Sensor Network

被引:11
|
作者
Wang, Jiliang [1 ]
Dong, Wei [3 ]
Cao, Zhichao [2 ]
Liu, Yunhao [1 ,2 ]
机构
[1] Tsinghua Univ, Beijing, Peoples R China
[2] Hong Kong Univ Sci & Technol, Hong Kong, Hong Kong, Peoples R China
[3] Zhejiang Univ, Hangzhou, Zhejiang, Peoples R China
来源
PROCEEDINGS OF THE 2012 IEEE 33RD REAL-TIME SYSTEMS SYMPOSIUM (RTSS) | 2012年
关键词
ACCESS DELAY;
D O I
10.1109/RTSS.2012.81
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
We present a comprehensive delay performance measurement and analysis in an operational large-scale urban wireless sensor network. We build a light-weight delay measurement system in such a network and present a robust method to calculate per-packet delay. Through analysis of delay and system metrics, we seek to answer the following fundamental questions: what are the spatial and temporal characteristics of delay performance in a real network? what are the most important impacting factors and is there any practical model to capture those factors? what are the implications to protocol design? In this paper, we explore the important factors from the data in presence of various metrics and randomness, and show that the important factors are not necessarily the same with that in Internet. Further, we propose a delay model to capture those factors and validate it in the network. We revisit several prevalent protocol designs such as Collection Tree Protocol, opportunistic routing and Dynamic Switching based Forwarding, and show the implications to protocol designs.
引用
收藏
页码:305 / 314
页数:10
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