Volume 5 - Issue 4
Improving Multi-path Congestion Control for Event-driven Wireless Sensor Networks by using TDMA
- Fang-Yie Leu
Department of Computer Science, TungHai University, Taiwan
leufy@thu.edu.tw
- Hsin-Liang Chen
Department of Computer Science, TungHai University, Taiwan
carl30412@gmail.com
- Chih-Chung Cheng
Department of Computer Science, TungHai University, Taiwan
s1003906@thu.edu.tw
Keywords: Congestion Control, Event-driven, TDMA, Bandwidth, WSN.
Abstract
In this paper, we propose a time division method to solve the congestion control problem for an
event-driven sensor network. In this method, a node adjusts time (therefore bandwidth) assigned to
each upstream node by employing a dynamic Time Division Multiple Access (TDMA) approach.
The purpose is to efficiently use resources available to the system and avoid the situation in which a
node cannot send event information to the Base Station (BS) on time through the insufficiently allocated
bandwidth when it detects multiple events in a short time span. Experimental results show that
this method can effectively improve the throughputs of a Wireless Sensor Network (WSN), shorten
its end-to-end delays and reduce its packet loss rates.