This paper investigates solutions that combine relay selection algorithms and opportunistic geographic routing strategies for autonomous wireless sensor networks, wherein transmissions often occur over multiple hops. In order to design and assess such contention-based geographic forwarding strategies, we establish an analytical framework that incorporates concepts from probability generating functions (through power series expansion), spatial point processes, and auction theory, as well as Monte Carlo simulations to corroborate analytical results. The investigated strategies are built upon three constituent parts: 1) relay selection algorithm; 2) contention resolution mechanism; and 3) geographic forwarding strategy. We then propose an auction-based algorithm for selecting the relay node that relies on the network topology as side-information. Our results show that geographic solutions that iteratively exploit the local knowledge of the topology to ponder the algorithm operation outperforms established random approaches. Although, there is an intrinsic tradeoff between the time needed to identify a suitable next hop relay and the respective progress that is achieved toward the final destination. engaged in power control techniques for enhanced high-speed packet access systems. In 2006, he was with the Nokia Institute of Technology, Brazil, engaged in the evaluation of the system performance of WiMAX systems. He is currently an Assistant Professor with São Paulo State University, São João da Boa Vista-SP, Brazil, and a member of the Research Staff with the Centre for Wireless Communications, University of Oulu. His research interests include statistical signal processing and analysis of interference networks using stochastic geometry Pedro Henrique Juliano Nardelli received the B.S. and M.Sc. degrees in electrical engineering from the State University of Campinas, Brazil, in 2006 and 2008, respectively, and the Doctoral degree from the University of Oulu, Finland, and the State University of Campinas, in 2013, following a dualdegree agreement. He currently holds a post-doctoral position at the University of Oulu, and his studies are mainly focused on the efficiency of wireless networks and spatiotemporal dynamics of complex systems. Hirley Alves received the B.Sc. and M.Sc. degrees in electronic engineering from the Federal University of Technology-Paraná, Brazil, in 2010 and 2011, respectively. He has participated in the Capes/Brafitec undergraduate exchange program, spending one year at the Universite de Technologie de Troyes, France. He is currently enrolled in a dual degree Ph.D. program between the University of Oulu and the Federal University of Technology-Paraná. He has been a Research Assistant with the Centre for Wireless Communications, University of Oulu, Oulu, Finland. His research interests lie in: wireless and cooperative communications; coding and HARQ techniques; full-duplexing communications; PHY-security networks; and performance analysis of practical fullduplex relaying schemes, and its application on heterogeneous networks. Matti Latva-aho was born in Kuivaniemi, Finland, in 1968. He received the M.Sc., Lic.Tech., and D.Tech. (Hons.) degrees from the University
The authors in REF proposed a contention-based strategy of geographic forwarding for wireless sensor networks.
Contention-Based Geographic Forwarding Strategies for Wireless Sensors Networks
IEEE Sensors Journal
IEEE Sensors Journal
Engineering Mathematics Computer Science