Heuristic‐based link quality preservation for reliable data delivery

Abstract

During the link failure conditions in Voice over Internet Protocol applications, the backup of routing information is an important requirement to offer the reliable data delivery to the destination. But the maintenance of multiple paths is the difficult and time consuming for the dynamic environment. But the hops reduction between the source and destination and the interference occurrence causes the transmission in multiple times and that leads to minimum network lifetime. Hence, the preservation of link between the multiple hops is the necessary task to improve the performance. This paper validates the link quality with the 4 measures as received signal strength indicator, bandwidth, node mobility, and the number of connections. The link quality factor (LQF) measurement considers the signal and noise level in 5 operating conditions to allow the automatic identification of closest neighbors and their location. The integration of tabu list and the heuristic-based fitness search algorithm constructs the routing path and updates the path to identify the link failure. The LQF estimation and the dynamic update provide an efficient data delivery path with less number of iterations. The comparative analysis between the proposed hybrid tabu-heuristic-based LQF with the existing protocols such as Adhoc On-Demand Vector (AODV), Optimized Link State Routing (OLSR), and the Interference-based Topology Control algorithm for Delay-constrained (ITCD) proves the effectiveness of tabu-heuristic-based LQF regarding the throughput, energy, packet delivery ratio with the minimum delay, and rebroadcasting probabilities.