In this paper, we develop call admission control algorithms for SIR-based power-controlled DS-CDMA cellular networks. We consider networks that handle both voice and data services. When a new call (or a handoff call) arrives at a base station requesting for admission, our algorithms will calculate the desired power control setpoints for the new call and all existing calls. We will provide neces...

In Wireless Mobile Cellular Networks, users usually move between heterogeneous networks. In this type of environment, handoff procedure algorithm, handoff decision and its management is very important issue. Wireless Mobile Cellular Network supports the handoff process for users between various wireless technologies such as WLAN, CDMA and modern 3G networks. Heterogeneous networks are integrate...

In this paper, we solve the call admission control (CAC) problem in a cellular network via a form of NeuroEvolution algorithm. The results are compared with Complete Sharing scheme, which allows all types of traffic to access all available channels at all time, and show that our proposed CAC scheme CN can reduce the hand off failure subject to several predefined Quality of Service (QoS) constra...

Call admission control (CAC) plays a significant role in providing the desired quality of service in wireless networks. Many CAC schemes have been proposed. Analytical results for some performance metrics such as call blocking probabilities are obtained under some specific assumptions. It is observed, however, that due to the mobility, some assumptions may not be valid, which is the case when t...

In CDMA (Code DivisionMultiple Access) cellular networks, the soft handoff technique allows a mobile host to communicate with multiple base stations simultaneously, improving the transmission quality of the wireless channel and avoiding disconnection upon to base station switching. In this thesis, we define the soft handoff margin as the area in which the mobile host can use soft handoff and ev...

Future-generation mobile communications will provide broadband multimedia services to users, anywhere, anytime. Network performance should be guaranteed to support these applications and services. To avoid serious network shortcomings such as call dropping and blocking in the existing cellular systems, “smart” handoff algorithms and their implementation should be considered especially when hand...

1 Computer Engineering Department, UET Taxila, Electronic Engineering Department, MAJU Islamabad, Computer Engineering Department, UET Taxila Pakistan [[email protected], [email protected], [email protected]] ABSTRACT: In this paper we proposed user satisfaction architecture for packed-switched services in 3 generation cellular networks for end-to-end Quality of Service (QoS) pro...

This paper presents the modeling and performance analysis in the integrated ad hoc and cellular network systems. In the modeling of the other integrated systems [7, 10, 12, 14, 17], the handoff area was not considered. However, for mobile communications, handoff area is important, complicated and unstable area that is the boundary of cells. In our system, handoff area and queue are taken into c...

Power control and handoff are two significant problems for cellular wireless systems. While both problems have received considerable attention of late, the problems are not often treated in a joint manner. Combined downlink power control and handoff design for cellular communication systems using a hybrid system framework is considered herein. Two new algorithms are proposed. The first one is a...

Future wireless Internet will consist of different wireless technologies that should operate together in a consistent way to provide seamless quality of service to wireless users. In this paper, a wireless cellular architecture overlaid with DiffServ domains is considered. We propose a flexible hierarchical framework for admission control based on this architecture which aims to keep the handof...