Utility-based Location-Aware Data Forwarding Algorithm for Delay-Tolerant Mobile Ad-hoc Networks
S Mohanasundaram · International Journal for Research in Applied Science and Engineering Technology · 2019
Delay-tolerant Mobile Ad-hoc Networks (DT-MANETs) may dearth a continuous end-to-end connection between mobile devices. Data delivery in this network is a challenging endeavor since it must cope with network partitioning, dynamic topology, and long delays. Moreover, conventional data forwarding algorithms in DT-MANETs cannot perform well owing to the failure of its postulate that all the communication links are present forever. In this work, a Utility-based Location-aware Routing Algorithm (ULRA) is designed for DT-MANETs. We formulate a mathematical framework to derive the utility function of the nodes in order to implement a controlled packet duplication technique. For decreasing the overhead ratio due to packet flooding, we implement a criterion to assess the rate of packet duplication. Finally, a packet redundancy controlling technique is added to this algorithm. Extensive simulation studies have been carried out and the results reveal that the proposed ULRA outdoes the other existing data forwarding algorithms like Binary spray and wait, Epidemic, and FirstContact in terms of average hop count (AHC), packet delivery ratio (PDR) and with the acceptable overhead ratio in delay-tolerant network scenario.