Design and Development of Multipath Routing Protocol using QoS in Heterogeneous Network

摘要

Heterogeneous network research is a recent extension of networking research. HETEROTB is the testbed for a wired-cum-wireless network that combines a stand-alone infrastructure network with a free-standing Mobile Ad- hoc Network (MANET). An Energy-Efficient Link Stability Routing Protocol (EELSRP) is proposed to establish a desired hybrid connection between MANET and the Internet. The proposed protocol uses a new metric to find the route in an intelligent way with higher transmission rates, less latency and better stability. A new mobility predication mechanism was used to determine the stability of links during path selection and also determine the bandwidth and delay constraint checks during route requests. An experimental Internet testbed was created for a heterogeneous network with a combination of wired and wireless nodes. The implementation included two phases: initial simulation and a performance analysis of the heterogeneous network. Experiment was conducted in this heterogeneous infrastructure with different network integration alternatives, and the performance of different routing protocols was measured for various network sizes, pause times and mobility patterns. In the second phase, network experiments were conducted in realistic environments and the quality of service was measured for different routing protocols.