Abstract
Multi-radio Multi-channel MAC protocols with a dedicated control channel (DCC) for data channel reservation are promising but they inherently face the problem of control channel saturation. In this paper, we identify the control channel saturation problem using simulation results, and then we propose a novel method, called persistent semi-random backoff (P-SRB), to operate on the control channel. P-SRB strategically arranges the backoff counters to achieve efficient resource reservations among stations. It requires minimal modification of the current 802.11 DCF implementation, but has significant performance improvements in terms of lower network collision rates, bounded transmission delay, as well as improved fairness. Results show that the control channel with P-SRB can provide 42.1% more reservation capacity compared to that of 802.11 DCF. Moreover, it is robust against interference from hidden terminals, and is fully backward compatible with devices using legacy 802.11 DCF.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
