Dynamic SIR based admission control algorithm for 3G wireless networks

Chiti, Francesco; Fantacci, R.; Mennuti, G.; Tarchi, Daniele

doi:10.1109/icc.2003.1203930

Cited by 7 publications

(3 citation statements)

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“…If the user can be assigned the power level without violating the constraint, the user is admitted to the network; otherwise, this call is blocked. A similar approach is proposed in [50] to check the power allocation feasibility as a criterion for admission in WCDMA systems with multiple-classes. This test checks whether there is any feasible power allocation that can achieve the target values of SINR of users in all classes.…”

Section: Power Allocation Feasibilitymentioning

confidence: 99%

Call admission control in wireless networks: A comprehensive survey

Ahmed

2005

IEEE Commun. Surv. Tutorials

236

121

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Radio resource management (RRM) plays a major role in Quality of Service (QoS) provisioning for wireless communication systems. The performance of RRM techniques has a direct impact on each user's individual performance and on the overall network performance. Arriving (new and handoff) calls are granted/denied access to the network by the call admission scheme (CAC) based on predefined criteria, taking the network loading conditions into consideration. CAC in wireless networks has been receiving a great deal of attention during the last two decades due to the growing popularity of wireless communications and the central role that CAC plays in QoS provisioning in terms of the signal quality, call blocking and dropping probabilities, packet delay and loss rate, and transmission rate. In the first and second generation of wireless systems, CAC has been developed for a single service environment. In the third generation and beyond wireless systems, multimedia services such as voice, video, data, and audio are to be offered with various QoS profiles. Hence, more sophisticated CAC schemes are developed to cope with these changes. This article provides a comprehensive survey of CAC schemes in modern wireless networks.

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Section: Power Allocation Feasibilitymentioning

confidence: 99%

Call admission control in wireless networks: A comprehensive survey

Ahmed

2005

IEEE Commun. Surv. Tutorials

236

121

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“…Basically, the purpose of this approach is to guarantee an adequate SINR value, higher than the SINR target , for both the incoming call, if accepted, as well as for the already active calls. The control is realized thanks to a proper MAI statistical model that gives the possibility to estimate the interference introduced by the requesting application in advance and, consequently, the SINR degradation of each connection on the basis of the configuration of active calls [7]. Following this model the multiuser interference that, at the BS, affects the signal of a user i can be expressed as:…”

Section: Admission Control Algorithmsmentioning

confidence: 99%

“…This preemptive approach is based on the estimation of the SINR experimented by each active connection, under the assumption of having accepted the requesting call. This prediction takes advantage of the analytical method, proposed in [7], to evaluate the MAI statistic, that takes under consideration different profiles, in term of necessary resources, of different service type. The analysis is limited to the uplink channel, in which interference is more remarkable.…”

Section: Introductionmentioning

confidence: 99%

Adaptive rate admission control for DS-CDMA cellular systems

Fantacci

Mennuti

Tarchi

IEEE International Conference on Communications, 2005. ICC 2005. 2005

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This paper deals with the proposal of an Adaptive Admission Control (AC) policy, that reduces call dropping probability, resorting to rate adaptation in accordance to the instantaneous connection configurations. We describe the philosophy of the proposed adaptive scheme and analyze the effective call dropping probability when considering a single cell UMTS scenario with an Additive White Gaussian Noise (AWGN) channel. Our simulations demonstrates that employing the proposed scheme the network performance can be extremely increased while the Quality of Service (QoS) requested is respected.

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