Performance Evaluation of Three Layer MIPv6 Architecture

Successful implementation of efficient mobility management techniques is critical to the success of next-generation wireless systems. Handoff management has become more critical in present wireless networks, to support multimedia communications and associated services. This paper intends to study the handoff management aspect of the general mobility management issue which is prevailing in wireless networks. Multilayer mobility management models such as Hierarchical Mobile IPv6 (HMIPv6) and flatter architectures like Proxy Mobile IPv6 have great potential to serve as a mobility management solution for the next-generation networks. Influenced by the advantages of layered mobility management architectures, in this paper, a Three Layered MIPv6 (TLMIPv6) model has been examined for its performance against various parameters like signaling load, packet delivery ratio, end-to-end delay, packet delivery overhead, jitter, bandwidth consumption, throughput, etc. Execution of TLMIPv6 has been contrasted and that of HMIPv6 and PMIPv6 under Random Walk Mobility and Gauss-Markov Mobility models. It is seen from the experimental results that the TLMIPv6 protocol exhibits more than 15% reduction in signaling cost for handoff frequencies greater than 7/sec and more than 20% reduction in end-to-end delay for hop distances above 18, in comparison to HMIPv6 under identical simulation scenarios. The future scopes of the work are outlined.