Sensors 2013, 13(7), 8786-8813; doi:10.3390/s130708786
Article

Breadth-First Search-Based Single-Phase Algorithms for Bridge Detection in Wireless Sensor Networks

International Computer Institute, Ege University, Bornova, Izmir 35100, Turkey
* Author to whom correspondence should be addressed.
Received: 2 May 2013; in revised form: 28 June 2013 / Accepted: 3 July 2013 / Published: 10 July 2013
(This article belongs to the Special Issue Sensors for Harsh-Environment Applications)
PDF Full-text Download PDF Full-Text [1060 KB, uploaded 10 July 2013 10:55 CEST]
Abstract: Wireless sensor networks (WSNs) are promising technologies for exploring harsh environments, such as oceans, wild forests, volcanic regions and outer space. Since sensor nodes may have limited transmission range, application packets may be transmitted by multi-hop communication. Thus, connectivity is a very important issue. A bridge is a critical edge whose removal breaks the connectivity of the network. Hence, it is crucial to detect bridges and take preventions. Since sensor nodes are battery-powered, services running on nodes should consume low energy. In this paper, we propose energy-efficient and distributed bridge detection algorithms for WSNs. Our algorithms run single phase and they are integrated with the Breadth-First Search (BFS) algorithm, which is a popular routing algorithm. Our first algorithm is an extended version of Milic’s algorithm, which is designed to reduce the message length. Our second algorithm is novel and uses ancestral knowledge to detect bridges. We explain the operation of the algorithms, analyze their proof of correctness, message, time, space and computational complexities. To evaluate practical importance, we provide testbed experiments and extensive simulations. We show that our proposed algorithms provide less resource consumption, and the energy savings of our algorithms are up by 5.5-times.
Keywords: wireless sensor networks; bridge detection; single-phase algorithm; network connectivity; distributed algorithm; breadth-first search

Article Statistics

Load and display the download statistics.

Citations to this Article

Cite This Article

MDPI and ACS Style

Akram, V.K.; Dagdeviren, O. Breadth-First Search-Based Single-Phase Algorithms for Bridge Detection in Wireless Sensor Networks. Sensors 2013, 13, 8786-8813.

AMA Style

Akram VK, Dagdeviren O. Breadth-First Search-Based Single-Phase Algorithms for Bridge Detection in Wireless Sensor Networks. Sensors. 2013; 13(7):8786-8813.

Chicago/Turabian Style

Akram, Vahid K.; Dagdeviren, Orhan. 2013. "Breadth-First Search-Based Single-Phase Algorithms for Bridge Detection in Wireless Sensor Networks." Sensors 13, no. 7: 8786-8813.

Sensors EISSN 1424-8220 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert