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Reliability and feedback of multiple hop wireless networks

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Abstract

This paper analyzes fault-tolerance over the entire design life of a class of multiple-hop wireless networks, where cooperative transmission schemes are used. The networks are subject to both node failure and random channel fading. A node lifetime distribution is modeled with an increasing failure rate, where the node power consumption level enters the parameters of the distribution. A method for assessing both link and network reliabilities projected at the network’s design life is developed. Link reliability is enhanced through use of redundant nodes. The number of redundant nodes is restricted by the cooperative transmission scheme used. The link reliability is then used to establish a re-transmission control policy that minimizes an expected cost involving power, bandwidth expenditures, and packet loss. The benefit and cost of feedback in network operations are examined. The results of a simulation study under specific node processing times are presented. The study quantifies the effect of loop closure frequency, acknowledgment deadline, and nodes’ storage capacity on the performance of the network in terms of network lifetime, packet loss rate, and false alarm rate. The study concludes that in a network where energy is severely constrained, feedback must be applied judiciously.

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Correspondence to N. Eva Wu.

Additional information

This work was partly supported by the US AFOSR (No. FA9550-06-0456 and FA9550-06-10249).

N. Eva Wu received her BSEE degree from the Northwestern Telecommunications Engineering Institute, Xi’an, China, in 1982, and the MSEE degree and Ph. D. degree both from the University of Minnesota, Minneapolis, USA, in 1983 and 1987, respectively. She is now a professor in the Department of Electrical and Computer Engineering at Binghamton University, Binghamton, NY.

Her current research interests include fault tolerant control of complex systems.

Sudha Thavamani received her B. Sc. degree in physics from University of Madras, Chennai, India, in 1995, the B.Sc. degree in instrumentation engineering from Anna University, Chennal, India, in 1998, and MSEE degree and Ph. D. degree from State University of New York at Binghamton in 2002 and 2006, respectively. She is currently a system engineer with TruePosition Inc., Berwyn, PA.

Her current research includes fault tolerant control, modeling and simulation of wireless networks.

Xiaohua Li received his B. Sc. and M. Sc. degrees from Shanghai Jiao Tong University, Shanghai, China, in 1992 and 1995, respectively, and the Ph.D. degree from the University of Cincinnait, Cincinnati, OH, in 2000. He was an assistant professor from 2000 to 2006, and has been an associate professor since 2006, both with the Department of Electrical and Computer Engineering, State University of New York at Binghamton, Binghamton, NY.

His current research interests include adaptive and array signal processing, blind channel equalization, and digital and wireless communications.

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Wu, N.E., Thavamani, S. & Li, X. Reliability and feedback of multiple hop wireless networks. Int J Automat Comput 4, 125–134 (2007). https://doi.org/10.1007/s11633-007-0125-1

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  • DOI: https://doi.org/10.1007/s11633-007-0125-1

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