Distributed coordination in dynamic spectrum allocation networks
- 1 January 2005
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
Abstract
Device coordination in open spectrum systems is a challenging problem, particularly since users experience varying spectrum availability over time and location. We propose a distributed coordination approach that handles spectrum heterogeneity without relying on the existence of a preassigned common control channel. Our approach carries potential to provide robust operation under network dynamics. While this approach can be implemented by upgrading the legacy protocol stack without modifying the MAC protocol, we also describe modifications to the MAC protocol that address spectrum heterogeneity and significantly improve system performance. Experimental results show that the proposed distributed coordination scheme outperforms the existing coordination schemes by 25-35% in throughput and provides 50% of delay reductionKeywords
This publication has 7 references indexed in Scilit:
- Utilization and fairness in spectrum assignment for opportunistic spectrum accessMobile Networks and Applications, 2006
- Collaboration and fairness in opportunistic spectrum accessPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2005
- A spectrum etiquette protocol for efficient coordination of radio devices in unlicensed bandsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2004
- Multi-channel mac for ad hoc networksPublished by Association for Computing Machinery (ACM) ,2004
- Open SpectrumQueue, 2003
- A new multi-channel MAC protocol with on-demand channel assignment for multi-hop mobile ad hoc networksPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- Scheduling broadcasts in multihop radio networksIEEE Transactions on Communications, 1990