2012/01/29 by Qingsi Wang, Mingyan Liu, Wang, Qingsi +1
Computer Science · Engineering · #Advanced Wireless Network Optimization #FOS: Computer and information sciences #FOS: Electrical engineering #Mobile Ad Hoc Networks #Networking and Internet Architecture (cs.NI) #Systems and Control (eess.SY) #Wireless Networks and Protocols #electronic engineering #information engineering
paper · pdf · doi:10.48550/arxiv.1201.6065
openalex publication_date 2012/01/29 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We observe that in a multi-channel wireless system, an opportunistic channel/spectrum access scheme that solely focuses on channel quality sensing measured by received SNR may induce users to use channels that, while providing better signals, are more congested. Ultimately the notion of channel quality should include both the signal quality and the level of congestion, and a good multi-channel access scheme should take both into account in deciding which channel to use and when. Motivated by this, we focus on the congestion aspect and examine what type of dynamic channel switching schemes may result in the best system throughput performance. Specifically we derive the stability region of a multi-user multi-channel WLAN system and determine the throughput optimal channel switching scheme within a certain class of schemes.