In this paper, we present an analytical model to study the soft handoff coverage by evaluating the new call blocking and the handoff call dropping probabilities in a cellular CDMA system. By assuming that the new call generation rate per unit area is uniformly distributed over the service area, enlarging the soft handoff region may increase both the blocking and the dropping probabilities. On t...

The deployment of multimedia services in wireless cellular networks calls for network resource management strategies for providing Quality-of-Service (QoS) support to mobile users. An important issue in wireless QoS provisioning is the prevention of handoff drops. We develop a cell-based call admission control (CAC) and bandwidth reservation scheme that aims at minimizing the handoff dropping p...

2 Assist. Prof. Dept. of Electronics & Communication Engg ,Meerut Institute of Engineering & Technology,Meerut [email protected] ABSTRACT Handoff mechanism is extremely important in cellular network because of the cellular architecture employed to maximize spectrum utilization. This unique feature has driven the rapid growth in the mobile network industry, changing it from a new technology i...

........................................................................................................vi Chapter 1: Introduction.........................................................................................1 Chapter 2: Review of Literature.............................................................................3 Chapter 3: Description of Simulation Model...........................

This paper presents a dynamic bandwidth allocation scheme for new and handoff voice calls in cellular networks. The main idea of the new scheme is based on monitoring the elapsed real time of handoff calls and according to both a time threshold (te) and a dynamically changing bandwidth threshold (Bt) parameters, a handoff call is either prioritized or treated as a new call. Also in this paper, ...

The vision of next generation networks is an all-IP network supporting heterogeneous wireless access technologies to accommodate a variety of services and traffic types and to allow the mobile user to roam within the service area or across the different networks without degrading the Quality of Service QoS provided. An approach to optimize these roaming procedures through the introduction of a ...

In this paper, a mobility predictive based resource (bandwidth) reservation is proposed to provide flexible usage of limited resource in wireless cellular networks. Currently, multimedia communications is urgently expected in wireless networks. That as there is more and more high speed applications that emerge for wireless networks. One of the most important and complicated issues is the Qualit...

AbmuctTraditional CAC schemes that mainly focus on the trade off between new call blocking probability and handoff call blocking probability can not solve the problem of congestion in wireless networks. In this paper we investigate the role of pricing as an additional dimension of the call admission control process in order to efficiently and effectively control the use of wireless network reso...

Handoff algorithm is used in wireless cellular systems to decide when and to which base station (BS) to handoff in order that the services can be continued uninterrupted. In this paper, we propose a handoff algorithm based on the neural network in a joint system of terrestrial and high altitude platform station (HAPS) cellular systems. As a revolutionary wireless system, HAPS can supply service...

In this paper, we propose and analyze a service-dependent handoff and channel allocation scheme in voice and data integrated cellular mobile systems, which combines the ideas of " Variable Bandwidth " and " Preemptive Priority " together. In the scheme, voice and data traffic are considered. According to the variations of the offered traffic intensity at each cell, both a voice and a data call ...