Paper Info
Title
Benefits Of Queued Handoff In A Multi-Tier Architecture
Abstract
In multi-tier cellular networks a set of contigious microcells are overlayed with a macrocell. Such architectures provide higher system capacity because of the small frequency reuse distance of the microcell layer, However, handoff control is a key issue in such architectures; decrease in the cell dwelling time causes higher number of handoffs and hence higher handoff blocking probability. Queueing handoff calls when there are no idle channels, in the target cell, can improve handoff blocking probability without significantly increasing the new call blocking probability. In this study, we first present an analytical model to study the performance of a single-tier cellular network with two types of users, namely, high-speed users and low-speed users. We then use this model to analyze a multitier network with queue in only one tier. Finally, we use a simulation model to examine the multi-tier network with different queue strategies. Our results show that by using a priority queue in the multi-tier network, the blocking probability of handoff calls can be significantly improved at the same time supporting a large system load.
Year
DOI
Venue
2000
10.1109/GLOCOM.2000.891866
GLOBECOM '00: IEEE GLOBAL TELECOMMUNICATIONS CONFERENCE, VOLS 1- 3
Keywords
Field
DocType
frequency,quality of service,computer architecture,computer science,performance,simulation model,cellular network,multi tier architecture,intelligent networks,priority queue,probability,channel allocation,dwell time,queueing theory
Computer science,Queue,Computer network,Microcell,Real-time computing,Priority queue,Queueing theory,Cellular network,Call blocking,Macrocell,Handover
Conference
ISSN
Citations 
PageRank 
1930-529X
4
0.70
References 
Authors
2
3
Name
Order
Citations
PageRank
Xiaoxin Wu147538.35
Dipak Ghosal22848163.40
Biswanath Mukherjee36034537.54