A multi-objective routing algorithm for Wireless Multimedia Sensor Networks

• A new multi-objective approach for the routing problem in Wireless Multimedia Sensor Networks (WMSNs) is proposed.
• Classical approximations optimize a single objective or Quality of Service (QoS) parameter.
• Classical approximations do not take into account the conflicting nature of QoS parameters which leads to sub-optimal solutions.
• The proposed approach takes into account multiple QoS requirements such as delay and the Expected Transmission Count (ETX).
• The case studies applying the proposed approach shows clear improvements on the QoS routing solutions.

In this paper, a new multi-objective approach for the routing problem in Wireless Multimedia Sensor Networks (WMSNs) is proposed. It takes into account Quality of Service (QoS) requirements such as delay and the Expected Transmission Count (ETX). Classical approximations optimize a single objective or QoS parameter, not taking into account the conflicting nature of these parameters which leads to sub-optimal solutions. The case studies applying the proposed approach show clear improvements on the QoS routing solutions. For example, in terms of delay, the approximate mean improvement ratios obtained for scenarios 1 and 2 were of 15 and 28 times, respectively.

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