The article titled, “Energy and Throughput Management in Delay-Constrained Small-World UAV-IoT Network,” has been accepted for publication in the IEEE Internet of Things Journal (2022).

Sreenivasa Reddy Yeduri, Naga Chilamkurthy, Om Jee Pandey, and Linga Reddy Cenkeramaddi, “Energy and Throughput Management in Delay-Constrained Small-World UAV-IoT Network,” has been accepted for publication in the IEEE Internet of Things Journal (2022).

Keywords: Internet of Things, Delays, Throughput, Protocols, Data communication, Wireless networks, Routing

Abstract: Multi-hop data routing over a large scale IoT network results in energy-imbalance and poor data throughput performance. In addition, data transmission using large number of hops causes more delay. In light of this, in this work, a novel method of energy and throughput management in delay-constrained small-world unmanned aerial vehicle (UAV)-IoT network is proposed. The proposed small-world framework optimizes the number of hops required for the data transmission leading to improved energy efficiency and quality of service. The method introduces optimal long range links between device-pairs resulting in low average path length and high clustering coefficient which are called as small-world characteristics. Therefore, in this work, UAVs are deployed to collect the data from IoT devices and forward it to the ground station utilizing the small world framework. It is shown through results that the network delays corresponding to the proposed method, conventional routing method, LEACH protocol, modified LEACH protocol, and canonical particle multi swarm (CPMS) method are 789.39 seconds (s), 1602.53 s, 1000.92 s, 873.63 s, and 999.79 s, respectively. It is also observed that the number of dead UAVs in case of proposed method is reduced when compared to other existing methods. It is also noticed that the proposed method results in 100% packet delivery ratio dominating LEACH and modified LEACH protocols. Thus, it is shown that the proposed method outperforms the other shortest path methods in terms of network latency, lifetime, and packet delivery ratio. Further, the effect of location of ground station, velocities of UAVs, and hovering heights of UAVs is considered for the performance evaluation of the proposed method. The obtained results validate the significance of utilization of proposed method over various network scenarios.

More details:DOI: 10.1109/JIOT.2022.3231644