Title :
Distributed protocol for channel assignment in cognitive wireless sensor networks
Author :
Cardei, Mihaela ; Mihnea, Amalya
Author_Institution :
Dept. of Comput. & Electr. Eng. & Comput. Sci., Florida Atlantic Univ., Boca Raton, FL, USA
Abstract :
Cognitive radios allow secondary users to use the underutilized spectrum. However, in the presence of a primary user, the unlicensed users must vacate the spectrum, leading to a decrease in network performance or even network partition. In this paper we address the problem of robust topology control in wireless sensor networks with the objective of assigning a sensor channel on each radio such that the resulting topology is robust to the presence of a primary user. That means that if a channel is reclaimed by a primary user, the resulting secondary user topology still preserves the connectivity between any two nodes. In this paper we propose a distributed algorithm for channel assignment which has low overhead and is scalable with the number of sensor nodes. We analyze the performance of our algorithm using ns-3 simulations.
Keywords :
cognitive radio; protocols; telecommunication network topology; wireless sensor networks; channel assignment; cognitive radios; cognitive wireless sensor networks; distributed algorithm; distributed protocol; ns-3 simulations; robust topology control; sensor channel; Channel allocation; Delays; Interference; Protocols; Sensors; Topology; Wireless sensor networks; channel assignment; distributed algorithm; wireless sensor network;
Conference_Titel :
Performance Computing and Communications Conference (IPCCC), 2013 IEEE 32nd International
Conference_Location :
San Diego, CA
Print_ISBN :
978-1-4799-3213-9
DOI :
10.1109/PCCC.2013.6742775