Network Restoration in Wireless Sensor Networks for Next-Generation Applications

Abstract

This paper investigates highly efficient network restoration models for wireless sensor networks (WSNs) to be deployed for next-generation (xG) applications. The developed network restoration models are designed with two main goals in mind. The first goal is to optimise network resource utilisation, the second is to protect the network against failures. In realising the goal of optimising resource usage, a peculiar feature of WSNs is exploited, namely, their ability to remain in active service even when one or more of their active elements (sensor nodes and/or connecting links) fail. To achieve the second goal of network protection, we leverage the advantage of p-cycle-based restoration solutions -the fact that they can provide ring-like recovery speeds with mesh-like capacity efficiencies -in developing optimal p-cycle restoration models that provide sufficient protection for the network against both link and node failures. In the restoration models developed, we employ a selection process that jointly considers the shortest lengths, best topologies and capacity requirements of the available p-cycles in achieving new capacity-optimal p-cycle-based restoration solutions for the network. Comparative results obtained show that our developed selection-based capacity-efficient p-cycle restoration solutions for WSNs outperform other similar approaches for both network realisation and protection, making them particularly ideal for xG applications.

Investigating and Analyzing Simulation Tools of Wireless Sensor Networks: A Comprehensive Survey

“…The attention to WSNs will grow dramatically because the number of sensors worldwide will be estimated to reach one trillion by 2025 [6]. Moreover, WSNs are crucial today in advancing Next-Generation (XG) wireless communications abilities [7]. In addition, WSN is an essential technology, especially for developing real-time applications such as healthcare applications and environmental monitoring [8].…”

Opportunistic Routing Aided Cooperative Communication MRC Network With Energy-Harvesting Nodes

“…All relay networks mentioned above are primarily founded on wireless two-hop relay networks with a single relay or multiple relays with the same priority. However, in reality, a practical wireless cooperative network, such as a wireless sensor network [14] or an Internet of Things (IoT) network [15], is a wireless multi-hop network. Opportunistic routing as a solution to improve the performance of the wireless multi-top network has been widely studied [16].…”

Opportunistic Routing Aided Cooperative Communication Network with Energy-Harvesting

“…they cannot communicate with each other). However, currently,the practical wireless cooperative network often utilize the wireless multi-top network with distributed topology, for example, the sensor network [18]. For the sake of further improving performance of the wireless multi-top network, the wireless multi-top network based on OR has been widely studied.…”