Title :
Spectrum-Aware Beaconless Geographical Routing Protocol for Mobile Cognitive Radio Networks
Author :
Kim, Junseok ; Krunz, Marwan
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Arizona, Tucson, AZ, USA
Abstract :
A key challenge in cognitive radio networks (CRNs) is how to adaptively and efficiently select a route and assign resources along that route according to the surrounding environment. In this work, we propose a distributed routing protocol for mobile CRNs, in which path selection and resource allocation (e.g., spectrum, transmission power, and transmission rate) are determined by receivers. Because this process is done on perpacket and per- hop basis, the proposed protocol can efficiently adapt to spectrum dynamics and node mobility. In addition, spectrum efficiency is increased through dynamic spectrum allocation and transmission power control. Simulation results show that delivery ratio and throughput are dramatically improved with our routing protocol.
Keywords :
cognitive radio; mobile radio; radio receivers; routing protocols; CRN; dynamic spectrum allocation; mobile cognitive radio networks; resource allocation; spectrum-aware beaconless geographical routing protocol; transmission power control; Ad hoc networks; Interference; Peer to peer computing; Receivers; Routing; Routing protocols; TV;
Conference_Titel :
Global Telecommunications Conference (GLOBECOM 2011), 2011 IEEE
Conference_Location :
Houston, TX, USA
Print_ISBN :
978-1-4244-9266-4
Electronic_ISBN :
1930-529X
DOI :
10.1109/GLOCOM.2011.6134224