A cluster-based proxy mobile IPv6 for IP-WSNs

Adnan J Jabir,Nor Asilah Wati A Hamid,Shamala K Subramaniam,Zuriati Z Ahmad

doi:10.1186/1687-1499-2012-173

Adnan J Jabir, Nor Asilah Wati A Hamid + Show 2 more

Open Access

https://doi.org/10.1186/1687-1499-2012-173

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Abstract

The Sensor Proxy Mobile IPv6 (SPMIPv6) has been designed for IP-based wireless sensor networks mobility to potentially save energy consumption by relieving the sensor nodes from participating in the handoff process. However, SPMIPv6 is dependent on a single and central Local Mobility Anchor (LMA), and thus, it inherited most of the problems observed in the Proxy Mobile IPv6 (PMIPv6) protocol, including long handoff latency, non-optimized communication path, and bottleneck issues. In addition, SPMIPv6 extends the single point of failure to include both the authentication and network information. This study presents an enhanced architecture for SPMIPv6 called Clustered SPMIPv6 (CSPMIPv6) to overcome the problems above. In the proposed architecture, the Mobility Access Gateways (MAGs) are grouped into clusters, each with a distinguished cluster Head MAG (HMAG). The HMAG is mainly designed to reduce the load on LMA by performing intra-cluster handoff signaling and providing an optimized path for data communications. The proposed architecture is evaluated analytically, and the numerical results show that the proposed CSPMIPv6 outperforms both SPMIPv6 and PMIPv6 protocols in terms of LMA load, local handoff delay, and transmission cost performance metrics.

Highlights

Wireless sensor networks (WSNs) consist of a large number of small devices that sense and collect information from their immediate environment
Dividing the proxy domain into clusters reduces the load on the Local Mobility Anchor (LMA), allows the Head Mobility Access Gateway (MAG) (HMAG) to perform the intra-cluster handoff locally, and optimizes the communication path, eventually reducing the packet loss ratio
The HMAG is one of the Proxy Mobile IPv6 (PMIPv6) MAGs elected to play the role of a cluster head

Summary

Introduction

Wireless sensor networks (WSNs) consist of a large number of small devices that sense and collect information from their immediate environment. Chai et al [25] discussed the application of the NEMO protocol for supporting group mobility in WSN, proposed a network architecture that supports the integration of NEMO and 6LoWPAN, and presented the related the signaling process, including the registration at the home network, association negotiation, handoff between different ARs, and packet routing. They compared the node remaining energy and the handoff time of MIPv6 and NEMO protocols with each other. The CLMA-MAG slightly affects CSPMIPv6 because the LMA is involved during the inter-cluster handoff only

Conclusions

Methods