نتایج جستجو برای: call admission control

تعداد نتایج: 1474829  

2004
Tat-Chung Chau Bo Li

Abstmet-This paper addresses the issue of call admission control with the necesary QaS guarantee for a micddala integrated wireless cellular network. Specifically, we propose a new call admission control policy called Dual-Threshold Call Admission Conml (DT-CAC) policy. It uses hw rhresholdr, one to reserve channels for narrow-band voice handoffcalls, and the other for wideband data handoff Irf...

2002
Tat-Chung Chau K. Y. Michael Wong Bo Li

Abstmet-This paper addresses the issue of call admission control with the necesary QaS guarantee for a micddala integrated wireless cellular network. Specifically, we propose a new call admission control policy called Dual-Threshold Call Admission Conml (DT-CAC) policy. It uses hw rhresholdr, one to reserve channels for narrow-band voice handoffcalls, and the other for wideband data handoff Irf...

1998
Peter Marbach John N. Tsitsiklis

In integrated service communication networks, an important problem is to exercise call admission control and routing so as to optimally use the network resources. This problem is naturally formulated as a dynamic programming problem, which, however, is too complex to be solved exactly. We use methods of reinforcement learning (RL), together with a decomposition approach, to find call admission ...

Journal: :Computer Communications 2005
Youssef Iraqi Raouf Boutaba

In this paper, we introduce a weight allocation strategy used to combine the received information from a set of base stations involved in a distributed admission control process. A method to compute the weights in a one and two-dimensional networks is proposed. We also propose a Distributed Call Admission Control (DCAC) framework designed for wireless mobile multimedia networks. We evaluate the...

2003
Rose Qingyang Hu J. Babbitt Hosame Abu-Amara Catherine Rosenberg Georgios Y. Lazarou

This paper addresses end-to-end connectivity planning and call admission control for a high capacity multibeam satellite network with on-board cross-connectivity. Onboard satellite switching is a technology designed to offer multimedia services, especially in demographically dispersed areas. Nevertheless, full on-board switching techniques are far from maturity. Their implementations have been ...

1999
Abdul Rahman Aljadhai Taieb Znati

| With the proliferation of wireless networks technologies, mobile users are expected to demand the same quality-of-service (QoS) available to xed users. This paper presents a framework to support predictive timed-QoS guarantees , in wireless environments. The main components of this framework include a service model for QoS guarantees , a path predictability model, and a call admission control...

2004
Olof Hagsand Ignacio Más Ivars Ian Marsh Gunnar Karlsson

If quality of service could be provided at the transport or the application layer, then it might be deployed simply by software upgrades, instead of requiring a complete upgrade of the network infrastructure. In this paper, we propose a self-admission control scheme that does not require any network support or external monitoring schemes. We apply the admission control scheme to IP telephony as...

Journal: :IEEE Trans. Signal Processing 2002
Sumeetpal Singh Vikram Krishnamurthy H. Vincent Poor

This paper addresses the call admission control problem for multiservice wireless code division multiple access (CDMA) cellular systems when the physical layer channel and receiver structure at the base station are taken into account. The call admission problem is formulated as a semi-Markov decision process with constraints on the blocking probabilities and signal-to-interference ratio (SIR). ...

2002
Matthew Chapman Caesar Dipak Ghosal Randy H. Katz

The two key resources in an IP Telephony network are the Internet Telephony Gateways (ITGs) and the IP network. These resources must be effectively managed to simultaneously provide good QoS to calls and maximize network resource utilization. This paper presents two main contributions. First, we design a call admission policy based on congestion sensitive pricing. As the load increases, this po...

Journal: :Wireless Networks 2004
Derong Liu Yi Zhang Sanqing Hu

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...

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