Stability Problems of Transport of Event Data in Realistic Wireless Sensor Networks

Authors:
Giuseppe De Marco;Leonard Barolli
Affiliations:
Department of Information and Communication Engineering, Fukuoka Institute of Technology (FIT), Wajiro-Higashi-ku, Fukuoka, Japan;Department of Information and Communication Engineering, Fukuoka Institute of Technology (FIT), Wajiro-Higashi-ku, Fukuoka, Japan
Venue:
International Journal of Distributed Sensor Networks - Advances on Heterogeneous Wireless Sensor Networks
Year:
2008

Citing 8
Cited 0

Wireless Communications: Principles and Practice

Wireless Communications: Principles and Practice
Understanding packet delivery performance in dense wireless sensor networks

Proceedings of the 1st international conference on Embedded networked sensor systems
Event-to-sink reliable transport in wireless sensor networks

IEEE/ACM Transactions on Networking (TON)
Deploying a Wireless Sensor Network on an Active Volcano

IEEE Internet Computing
Statistical model of lossy links in wireless sensor networks

IPSN '05 Proceedings of the 4th international symposium on Information processing in sensor networks
Models and solutions for radio irregularity in wireless sensor networks

ACM Transactions on Sensor Networks (TOSN)
MAC protocols for wireless sensor networks: a survey

IEEE Communications Magazine
Collision-minimizing CSMA and its applications to wireless sensor networks

IEEE Journal on Selected Areas in Communications

Quantified Score

Hi-index	0.00

Visualization

Abstract

In general, wireless sensor networks have a certain degree of spatial redundancy, which means that a high number of nodes can sense the same event at the same time. This redundancy permits to simplify both MAC protocol and the transport of sensed data. In particular, in this paper, we review a widely accepted transport technique which makes use of the event-reliability concept. A system implementing this technique is essentially a control system, where the controlled variables are the reporting rates of sensor nodes and the control variable is a function of the perceived event reliability at the sink node. As control system, we are interested in stable operating points. If we respect the capacity limit of the network, such stable points exist. However, if we take into account also the irregularities of radio links, well documented in recent measurements on real sensors testbeds, possible unstable states may arise. Here, we study this problem by means of simulation of a wireless sensor network under the assumption of two simplified versions of the radio model. We found that indeed the routing protocols should be carefully engineered in order to support event reliability based techniques.