We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
L2OR: Low-Cost Low-Complexity Opportunistic Routing for Wireless Sensor Networks.
- Authors
Shen, Hang; Bai, Guangwei; Zhao, Lu; Ge, Jinfeng; Tang, Zhenmin
- Abstract
Opportunistic routing can greatly improve energy efficiency in wireless sensor networks (WSNs). An important challenge is the design of a coordination protocol to implement an effective relay selection and prioritization scheme to minimize expected cost. Many existing opportunistic routing protocols often assumed an ideal link-layer, and thus the computed forwarder list may be suboptimal. Worth noting that, the computation complexity of optimal result grows rapidly with size of candidate set when the nonideal link-layer conditions are taken into account. It is, however, not feasible for energy and processing capability constrained WSNs. To address this problem, we propose a low-cost low-complexity opportunistic routing (L2OR) protocol to achieve an energy-efficient data delivery over WSNs. Our research work begins with a thorough investigation and understanding of properties of forwarder list under nonideal link-layer conditions. On this basis, a low-complexity heuristic algorithm is designed to efficiently find a reasonable choice of forwarder list, with an objective of reducing the search space to the size of candidate set. We conduct theoretical analysis and a set of simulation experiments to evaluate the performance of our L2OR. It is shown that, when comparing to typical energy-aware opportunistic protocol, the L2OR can achieve performance improvement in terms of data transmission efficiency as well as energy consumption.
- Subjects
WIRELESS sensor networks; ROUTING (Computer network management); COMPUTER network protocols; DATA transmission systems; AUTOCORRELATION (Statistics)
- Publication
Wireless Personal Communications, 2015, Vol 82, Issue 1, p401
- ISSN
0929-6212
- Publication type
Article
- DOI
10.1007/s11277-014-2214-0