Self-similarity in World Wide Web traffic: evidence and possible causes
IEEE/ACM Transactions on Networking (TON)
Fast and scalable wireless handoffs in supports of mobile Internet audio
Mobile Networks and Applications - Special issue: mobile networking in the Internet
An Enhanced Inter-Access Point Protocol for Uniform Intra and Intersubnet Handoffs
IEEE Transactions on Mobile Computing
Downlink Radio Resource Allocation for Multi-Cell OFDMA System
IEEE Transactions on Wireless Communications
Opportunistic transmission scheduling with resource-sharing constraints in wireless networks
IEEE Journal on Selected Areas in Communications
Throughput-range tradeoff of wireless mesh backhaul networks
IEEE Journal on Selected Areas in Communications
Mobility support in IP: a survey of related protocols
IEEE Network: The Magazine of Global Internetworking
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A backhaul network in mobile wireless systems consists of lower-level base stations (BSs) and upper-level access routers (ARs). While the legacy model considers only a queue at a BS for downstream traffic, we focus on queues at both the BS and the AR, hence calling it the split two-level queueing (S-2Q) model. The transmission rate of the backhaul link between a BS and an AR can be adjusted to stablize the BS queue. We develop a queue-aware rate control algorithm for the backhaul link such that BS queues will suffer neither buffer overflow nor underflow due to drastic short-term variations in wireless channel condition. We then derive the stability conditions of BS queues and propose two strategies, each applicable to handoff and normal (non-handoff) users separately. For handoff users, it is desirable that the BS queue buffers as few packets as possible to improve handoff performance. For normal users, it is desirable that the BS queue buffers as many packets as possible to exploit multiuser diversity of opportunistic scheduling. Our in-depth simulation results have shown that the proposed algorithm stabilizes the BS queue for normal users and reduces handoff latency to 0.8 second from 3 seconds for handoff users.