Senses Lab

SEnsors NetworkS and Embedded Systems Laboratory

Center for Cyber Intelligence and Information Security

Cognitive WSN transmission control for energy efficiency under WLAN coexistence

Research Area: Cognitive radio networking Year: 2011
Type of Publication: In Proceedings
Authors: I. Glaropoulos; V. Fodor; Loreto Pescosolido; Chiara Petrioli
Book title: Sixth International ICST Conference on Cognitive Radio Oriented Wireless Networks and Communications
Series: Crowncom 2011 Pages: 261-265
Organization: IEEE
In this paper we design a cognitive access scheme for WSNs that coexist with WLANs, considering the problem of blind and hidden WLAN terminals. The cognitive access scheme relies on a-priory known WLAN idle time distribution functions and repeated channel measurements to optimize the size of the transmitted data unit and the transmission distance, such that the normalized transmission energy is minimized. We compare the proposed scheme with simple carrier sensing and random access solutions and show that the energy gain is significant under typical WLAN utilization values.
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