Interference Aware Routing and Load Balancing in Wireless Sensor and Actuator Networks

Shekar Nethi, Riku Jäntti

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Abstract

In wireless sensor and actuator network (WSANs) there usually exists critical data, such as alarms and emergent event reports, that require short time delivery with high reliability but data volume is relatively small. At the same time, there exists larger volume of bulk sensor data which typically is delay tolerant and should be transmitted in the most energy efficient manner. On the 2.4 GHz ISM-band, the coexistence of the WSANs with WLANs imposes great challenge for designing reliable WSAN protocols. In this paper, we propose new sink initiated routing protocol that supports the two above mentioned traffic classes and is aware of the interference situation of the network. Critical data is transmitted using most interference resilient and reliable paths that minimize the expected transmission delay while the bulk data is transmitted in the most energy efficient manner by applying load balancing over several paths. The use of load balancing aims to even out the energy consumption of the intermediate nodes and thus maximize the operation time of the network. Our routing protocol estimates the link reliability based on the strength and activity of the interference as well as the path loss of the link and is able to adapt the routes based on changes in the propagation conditions and WLAN interference.

Original languageEnglish
Title of host publicationQuality, Reliability, Security and Robustness in Heterogeneous Networks - 7th Int. Conf. on Heterogeneous Networking for Quality, Reliability, Security and Robustness, QShine 2010 and DSRC 2010.
Pages316-327
Number of pages12
DOIs
Publication statusPublished - 1 Dec 2012
MoE publication typeA4 Article in a conference publication
EventInternational Conference on Heterogeneous Networking for Quality, Reliability, Security and Robustness - Houston, United States
Duration: 17 Nov 201019 Nov 2010
Conference number: 7

Publication series

NameLecture Notes of the Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering, LNICST
Volume74 LNICST
ISSN (Print)1867-8211

Conference

ConferenceInternational Conference on Heterogeneous Networking for Quality, Reliability, Security and Robustness
Abbreviated titleQShine
CountryUnited States
CityHouston
Period17/11/201019/11/2010

Keywords

  • Interference Aware Routing
  • Load Balancing
  • Multipath routing
  • WSANs

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