Multi path routing protocol for Improving Reliability in IEEE 802.16 Wireless Mesh networks

Abstract

In IEEE 802.16 Wireless Mesh networks (WMN), multipath routing is used to improve the reliability and load balancing. But existing multi path routing protocols for WMNs, causes congestion in the gateways because of routing and control message flooding. In this paper, a multipath routing protocol is proposed to improve the reliability and provide fault-tolerance in IEEE 802.16 WMNs. In this protocol, the interference and load of each link is determined based on which a combined routing metric is designed. Multiple shortest paths are then established and the path with least combined metric is chosen as primary path. In case of any failures in primary path, the data transmission can be rerouted through the backup path. By simulation results, we show that the proposed protocol has improved throughput with reduced delay and overhead when compared to the existing protocols.

Distributed Multipath Routing with Handling of Congestion in TCP/IP Networks using Neural Network

“…While the second is a 14-node (NSFNET topology) computer network (CN2) shown in Figure (2). The imposing values of delay time of the links and rate of packet dropping of neighbor nodes for these two computer networks are shown in Tables (1) and (2), respectively J.Thi-Qar Sci.…”

Improving the AODV Protocol to Satisfy the Required Level of Reliability for Home Area Networks

“…When a failure occurs on the primary path, this protocol uses a bridge to transfer the data to the other path, and improves the reliability of transmission in a significant manner. Valarmathi and Malmurugan [15] proposed a multipath routing protocol, which selects a path from source node to destination node with the least interference. The combined metric is computed based on the interference and load of each link.…”

Distributed Multipath Routing with Handling of Congestion in TCP/IP Networks using Neural Network

“…In BMR, the available bandwidth of nodes is obtained based on a cross-layer mechanism, which can provide a metric for routing discovery.  K. Valarmath, and Dr. N. Malmurugan [1],…”

“…Multipath routing constructs multiple paths for a source and destination and provide faulttolerance and reliability [1]. Currently routing algorithms only consider shortest paths between networks, moreover there is a lack of cooperation between congestion control and routing.…”