Title :
Collaborative Routing, Scheduling and Frequency Assignment for Wireless Ad Hoc Networks Using Spectrum-Agile Radios
Author :
Wang, Xin ; Garcia-Luna-Aceves, J.J.
Author_Institution :
Comput. Eng. Dept., Univ. of California, Santa Cruz, Santa Cruz, CA
Abstract :
We present the CROWN (collaborative routing, scheduling and frequency assignment for wireless ad hoc networks) scheme. CROWN is a cross-layer optimization approach for spectrum-agile nodes to adjust their spectrum allocation and transmission scheduling according to the underlying traffic demands. Instead of choosing the optimal route based on predetermined transmission scheduling and frequency assignment results, CROWN incorporates the efficiency of the underlying frequency assignment and scheduling information into the routing metric calculation, so that the route with the maximal joint spatial and frequency reuse is selected. Simulation results show that CROWN efficiently exploits the frequency diversity and spatial reuse features of spectrum-agile radios.
Keywords :
ad hoc networks; frequency allocation; mobile radio; scheduling; telecommunication network routing; telecommunication traffic; collaborative routing; cross-layer optimization; frequency assignment; frequency diversity; spectrum allocation; spectrum-agile radio; traffic demand; transmission scheduling; wireless ad hoc network; Collaboration; Costs; Frequency diversity; Frequency estimation; Interference; Mobile ad hoc networks; Processor scheduling; Routing; Telecommunication traffic; Throughput;
Conference_Titel :
Computer Communications and Networks, 2008. ICCCN '08. Proceedings of 17th International Conference on
Conference_Location :
St. Thomas, US Virgin Islands
Print_ISBN :
978-1-4244-2389-7
Electronic_ISBN :
1095-2055
DOI :
10.1109/ICCCN.2008.ECP.110
