A multi-station packet-radio network
Performance Evaluation
Digital Cellular Radio
Mobile Cellular Telecommunications Systems
Mobile Cellular Telecommunications Systems
Overview of wireless personal communications
IEEE Communications Magazine
Channel carrying: a novel handoff scheme for mobile cellular networks
IEEE/ACM Transactions on Networking (TON)
Improving call admission policies in wireless networks
Wireless Networks
Multi-Tier Cellular Network Dimensioning
Wireless Networks
A Markov Renewal Based Model for Wireless Networks
Queueing Systems: Theory and Applications
A scalable multicast key management scheme for heterogeneous wireless networks
IEEE/ACM Transactions on Networking (TON)
Performance Metrics for IEEE 802.21 Media Independent Handover (MIH) Signaling
Wireless Personal Communications: An International Journal
A non-disruptive handoff protocol for wireless ATM networks
Computer Communications
Bandwidth degradation QoS provisioning for adaptive multimedia in wireless/mobile networks
Computer Communications
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In cellular networks, blocking occurs when a base station has no free channel to allocate to a mobile user. One distinguishes between two kinds of blocking, the first is called new call blocking and refers to blocking of new calls, the second is called handoff blocking and refers to blocking of ongoing calls due to the mobility of the users. In this paper, we first provide explicit analytic expressions for the two kinds of blocking probabilities in two asymptotic regimes, i.e., for very slow mobile users and for very fast mobile users, and show the fundamental differences between these blocking probabilities. Next, an approximation is introduced in order to capture the system behavior for moderate mobility. The approximation is based on the idea of isolating a set of cells and having a simplifying assumption regarding the handoff traffic into this set of cells, while keeping the exact behavior of the traffic between cells in the set. It is shown that a group of 3 cells is enough to capture the difference between the blocking probabilities of handoff call attempts and new call attempts.