Evaluation of ZigBee Based Wireless Sensor Network with Static Sink and Random Sink Mobility

In this paper we investigate performance of a ZigBee based wireless sensor network in two scenarios one with a static sink and other with random sink mobility through extensive ns2-based simulations for various topologies (star, tree and mesh). Wireless Sensor Networks (WSNs) can be considered as a glut of distributed sensor nodes which are able to sense a physical process or environmental parameters and also capable to transfer that information to a predefined sink node through some intermediate nodes. If sink remains static at a fixed position then neighboring nodes of the sink consume their energy more rapidly as compared to other nodes which are far away from the sink because they have to forward all the traffic of the farther away nodes to the sink that leads to complete isolation of sink in a less time and hence network performance is degraded due to non-uniform consumption of energy. We introduce a simple random mobility scheme in which sink moves randomly through whole network. We also investigate end-to-end delay of packets and throughput for identical network conditions in both the cases. The main aim of this work is to evaluate, through simulations, the impact of random sink mobility in a ZigBee/IEEE 802.15.4 based wireless sensor network.

[1]  Jian Ma,et al.  Simulation Study of AODV Performance over IEEE 802.15.4 MAC in WSN with Mobile Sinks , 2007, 21st International Conference on Advanced Information Networking and Applications Workshops (AINAW'07).

[2]  Emiliano Miluzzo,et al.  People-centric urban sensing , 2006, WICON '06.

[3]  S. S. Riaz Ahamed,et al.  THE ROLE OF ZIGBEE TECHNOLOGY IN FUTURE DATA COMMUNICATION SYSTEM , 2009 .

[4]  Timo Hämäläinen,et al.  Performance analysis of IEEE 802.15.4 and ZigBee for large-scale wireless sensor network applications , 2006, PE-WASUN '06.

[5]  Ivan Stojmenovic,et al.  Sink Mobility in Wireless Sensor Networks , 2010 .

[6]  Ahmed Karmouch,et al.  Deployment-based Solution for Prolonging Network Lifetime in Sensor Networks , 2008, WSAN.

[7]  Ivan Stojmenovic,et al.  Wireless Sensor and Actuator Networks: Algorithms and Protocols for Scalable Coordination and Data Communication , 2010 .

[8]  Paul G. Spirakis,et al.  An efficient communication strategy for ad-hoc mobile networks , 2001, PODC '01.

[9]  Emanuel Melachrinoudis,et al.  Controlled sink mobility for prolonging wireless sensor networks lifetime , 2008, Wirel. Networks.

[10]  Jianhua Zhang,et al.  Design and Optimization of Wireless Sensor Network with Mobile Gateway , 2007, 21st International Conference on Advanced Information Networking and Applications Workshops (AINAW'07).

[11]  David Tse,et al.  Mobility increases the capacity of ad hoc wireless networks , 2002, TNET.

[12]  Natalija Vlajic,et al.  Performance of IEEE 802.15.4 in wireless sensor networks with a mobile sink implementing various mobility strategies , 2008, 2008 33rd IEEE Conference on Local Computer Networks (LCN).