A controllable multi‐replica routing approach for opportunistic networks. Issue 4 (30th March 2017)

• Record Type: Journal Article
• Authors: Zhao, Ruonan; Wang, Xiaoming; Lin, Yaguang; Yang, Yunhui; Hui, Tiantian; Zhang, Lichen
• Is Part Of: IEEJ transactions on electrical and electronic engineering. Volume 12:Issue 4(2017)
• Page Start: 589
• Page End: 600
• Publication Date: 2017-03-30
• Subjects: opportunistic networks -- routing -- energy efficiency -- single‐branch diffusion strategy; Electrical engineering -- Periodicals; Electronics -- Periodicals; 621.3
• DOI: 10.1002/tee.22437
• Languages: English
• ISSNs: 1931-4973

Abstract

Abstract : Opportunistic networks take full advantage of opportunistic encounters among nodes to transfer packets. According to the characteristics of the limited energy of nodes and the frequent link variation in opportunistic networks, we introduce a novel routing metric that comprehensively takes into consideration the energy consumption of nodes, the probability of relay nodes meeting their destination, the time‐to‐live of the packet, and the approximate number of packet copies. Based on this metric, we propose a controllable multi‐replica routing approach in which a single‐branch diffusion strategy is applied to achieve the goal of dynamically controlling the number of replicas of packets. Our simulation results show that the proposed approach can avoid excessive load on individual nodes, guarantee the energy fairness among nodes, prolong the network lifetime, and effectively improve the delivery ratio of packets. © 2017 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.