@article{b7d6a946ede749b8980618ae79607848,
title = "SDRCS: A service-differentiated real-time communication scheme for event sensing in wireless sensor networks",
abstract = "Real-time communication is crucial for wireless sensor networks (WSNs) to accomplish collaborative event sensing tasks with specific timing constraints. In this work, a service-differentiated real-time communication scheme (SDRCS) is developed to provide soft real-time guarantees for event-based traffic in WSNs. SDRCS features a cross-layer packet forwarding design to integrate the real-time routing functionality with a novel prioritized medium access control scheme. Based on this design, SDRCS performs distributed packet traversal speed estimation for traffic classification and admission control. SDRCS also performs prioritized packet forwarding so that the routing decisions are locally performed for maximized packet traversal speed. SDRCS requires no extra hardware for localization, transmission power adaptation or multi-channel transmission. It also adapts well to network dynamics, such as channel quality and communication voids. Performance evaluations show that SDRCS significantly improves the on-time delivery ratio and service-differentiation granularity for mixed priority traffic flows in unsynchronized WSNs, compared with currently used communication schemes. SDRCS also provides higher end-to-end throughput in terms of supporting higher source data rates with tight end-to-end latency requirements.",
keywords = "Distributed event sensing, Prioritized MAC, Receiver-contention-based forwarding, Service-differentiated real-time communication, Wireless sensor networks",
author = "Yuyan Xue and Byrav Ramamurthy and Vuran, {Mehmet C.}",
note = "Funding Information: Mehmet C. Vuran received his B.Sc. degree in electrical and electronics engineering from Bilkent University, Ankara, Turkey, in 2002. He received his M.S. and Ph.D. degrees in electrical and computer engineering from Broadband Wireless Networking Laboratory, School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, GA, under the supervision of Prof. Ian F. Akyildiz in 2004 and 2007, respectively. Currently, he is an Assistant Professor in the Department of Computer Science and Engineering at the University of Nebraska-Lincoln and director of Cyber-Physical Networking Laboratory. Dr. Vuran received the NSF CAREER award in 2010. He has received numerous academic honors, including the 2010 Maude Hammond Fling Faculty Interdisciplinary Research Fellowship from the UNL Research Council and the 2007 ECE Graduate Research Assistant Excellence Award from Georgia Tech{\textquoteright}s School of Electrical and Computer Engineering. He is an associate editor of Computer Networks Journal and Journal of Sensors. He is a member of the Institute of Electrical and Electronics Engineers (IEEE) and the IEEE Communication Society. His current research interests include cross-layer design and analysis, wireless sensor networks, underground sensor networks, cognitive radio networks, and deep space communication networks. Funding Information: Byrav Ramamurthy is currently an Associate Professor in the Department of Computer Science and Engineering at the University of Nebraska-Lincoln (UNL). He is the author of the book “Design of Optical WDM Networks – LAN, MAN and WAN Architectures” and a co-author of the book “Secure Group Communications over Data Networks” published by Kluwer Academic Publishers/Springer in 2000 and 2004 respectively. He serves as the Chair of the IEEE Communication Society{\textquoteright}s Optical Networking Technical Committee (ONTC). He serves as the IEEE INFOCOM 2011 TPC Co-Chair. His research areas include optical and wireless networks, peer-to-peer networks for multimedia streaming, network security and telecommunications. His research work is supported by the US National Science Foundation, US Department of Energy, US Department of Agriculture, AT& T Corporation, Agilent Tech., Ciena, HP and OPNET Inc. ",
year = "2011",
month = oct,
day = "27",
doi = "10.1016/j.comnet.2011.06.018",
language = "English (US)",
volume = "55",
pages = "3287--3302",
journal = "Computer Networks",
issn = "1389-1286",
publisher = "Elsevier B.V.",
number = "15",
}