Multi-Tier Cellular Network Dimensioning
Wireless Networks
A Rate-Based Borrowing Scheme for QoS Provisioning in Multimedia Wireless Networks
IEEE Transactions on Parallel and Distributed Systems
A Fair Resource Allocation Protocol for Multimedia Wireless Networks
IEEE Transactions on Parallel and Distributed Systems
A buffered-bandwidth approach for supporting real-time video streaming over cellular networks
Multimedia Tools and Applications
Fairness and load balancing in wireless LANs using association control
IEEE/ACM Transactions on Networking (TON)
A Mobile Bandwidth-Aggregation Reservation Scheme for NEMOs
Wireless Personal Communications: An International Journal
Analysis of Fast Handover Mechanisms for Hierarchical Mobile IPv6 Network Mobility
Wireless Personal Communications: An International Journal
Modeling and analysis of queuing handoff calls in single and two-tier cellular networks
Computer Communications
Nested Network Mobility on the Multihop Cellular Network
IEEE Communications Magazine
Route Optimization Using Tree Information Option for Nested Mobile Networks
IEEE Journal on Selected Areas in Communications
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In this paper, we present a proportional bandwidth adjustment (PBA) scheme using bit-error-rate (BER) ratios in a two-tier hierarchical NEMO system, composed of an access router (AR), mobile routers (MRs), and visiting mobile nodes (MNs). Depending on the location, an MN may use direct link to AR (Tier-0) or indirect link to AR via MR (Tier-1). To increase system utilization, sessions generated by high-speed MNs in one tier are allowed to use a certain amount of free bandwidth in another tier. Since Tier-1 traffic can be temporarily buffered at MR, to reduce the blocking probability of Tier-0, the bandwidth between Tier-0 and Tier-1 can be proportionally adjusted based on BER. In other words, more bandwidth is allocated to the tier with smaller BER. For the purpose of performance evaluation, we build a mathematical model with 6D Markov chains to analyze session blocking probabilities, system utilization, and normalized goodput. Analytical results are validated through a simulation. Both results demonstrate that the proposed PBA can significantly reduce the session blocking probabilities and increase the overall normalized goodput when BER ratio between Tier-0 and Tier-1 is very different. Copyright © 2010 John Wiley & Sons, Ltd.