An adaptive bandwidth borrowing-based Call Admission Control scheme for multi-class service wireless cellular networks

Khanjari, Sharifa Al; Arafeh, Bassel; Day, Khaled; Alzeidi, Nasser

doi:10.1109/innovations.2011.5893853

Cited by 10 publications

(7 citation statements)

References 14 publications

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“…For further details, refer to the work of Al Khanjari [14]. Scenario 1 is a Complete Bandwidth Sharing scheme with No Adaptation (CBS-NA) that only admits the calls if there is an available bandwidth; otherwise, the calls are blocked or dropped.…”

Section: Resultsmentioning

confidence: 99%

“…In this section, a number of these cases are carefully selected and discussed in the coming paragraphs, because of the limited space. For further details, refer to the work of Al Khanjari [14]. In all the conducted tests, the ratios for the CBR, VBR, and UBR call classes are set to 0.5, 0.25, and 0.25, respectively.…”

Section: Resultsmentioning

confidence: 99%

“…In this section, we specify the simulation parameters, and present only selected results (for brevity) generated by the evaluation process. More results can be found in [14].…”

Section: Performance Evaluationmentioning

confidence: 90%

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Bandwidth borrowing‐based QoS approach for adaptive call admission control in multiclass traffic wireless cellular networks

Khanjari

Arafeh

Day

et al. 2011

Int J Communication

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This paper proposes a QoS approach for an adaptive call admission control (CAC) scheme for multiclass service wireless cellular networks. The QoS of the proposed CAC scheme is achieved through call bandwidth borrowing and call preemption techniques according to the priorities of the traffic classes, using complete sharing of the available bandwidth. The CAC scheme maintains QoS in each class to avoid performance deterioration through mechanisms for call bandwidth degradation, and call bandwidth upgrading based on min-max and max-min policies for fair resource deallocation and reallocation, respectively. The proposed adaptive CAC scheme utilizes a measurement-based online monitoring approach of the system performance, and a prediction model to determine the amount of bandwidth to be borrowed from calls, or the amount of bandwidth to be returned to calls. The simulation-based performance evaluation of the proposed adaptive CAC scheme shows the strength and effectiveness of our proposed scheme.Usually, a mobile terminal's (MT) request for a service may be denied access based on the nonavailability of resources adequate to the requirements of the service. In this work, the bandwidth allocated to a call is considered the main resource. The mobile terminal's denial of service is referred to as call blocking and its probability as the call blocking probability, P b . However, a mobile terminal may move from one cell to another, while being in active connection. To maintain continuity of the service, the mobile terminal must have a successful handoff from the previous cell to the current cell. A successful handoff of a call to the current cell's base station (BS) is made if the mobile terminal has been granted the required resources for the connection without deterioration of its QoS. The failure of a mobile terminal to have a successful handoff at any point in its path would terminate the call. The probability of a call termination or dropping is called the call dropping probability, P d . We will refer in this work to the duration of a call connection by the call holding time .t c /, and the duration of the time a mobile terminal exists in a cell by the cell residency time .t r / [2].Typically, service providers for wireless cellular networks would strive to achieve high profitability, while being able to maintain users' satisfaction. For the first goal, they would try to maximize the number of admitted calls into the network to ensure efficient bandwidth utilization. For the second, service providers work on minimizing the number of handoff call dropping and new call blocking, and reducing the latency and overheads of call admissions and handoff computations. Finding a compromise between the two conflicting goals is a challenging problem. In this work, we propose a bandwidth borrowing-based adaptive CAC scheme in multiclass service wireless cellular networks that tries to strike a balance between users' satisfaction and profitability. The proposed adaptive scheme achieves its objectives through techniques for rate deg...

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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Bandwidth borrowing‐based QoS approach for adaptive call admission control in multiclass traffic wireless cellular networks

Khanjari

Arafeh

Day

et al. 2011

Int J Communication

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“…The grade of service of a wireless mobile network can be defined in terms of the blocking probability of new call and the dropping probability of handoff call.In handoff strategy, in order to improve the two indicators, two priorities are considered in many handoff strategies. Some handoff strategy taking into account different priorities between different service types have been proposed (Krishna et al, 2009;Al Khanjari et al, 2011;Suleiman et al, 2011), the different priorities between handoff calls and new calls other handoff are considered in other strategies. A new call being blocked is not as disastrous as a handoff call being dropped, so these strategies (Idil and Muhammed, 2007;Sheu et al, 2007;Nasr et al, 2010) consist of giving higher priority to handoff call than new call.…”

Section: Introductionmentioning

confidence: 99%

Improvement Priority Handoff Scheme for Multi-Service Wireless Mobile Networks

Liu¹,

Jia²,

Qin³

et al. 2014

JNW

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In this study, a new handoff strategy to improve the performance of wireless mobile networks is presented. It has been found form this study that the dropping probability of handoff calls is drastically reduced compared to the existing method of channel reservation strategy of handoff calls and the performance of new calls can be improved. The strategy is that the new call should be delayed then it can use the last idle channel. The time that all the channels are holding has been shortened. Opportunities of the new call and handoff call occupancy channel are increased; the scheme also takes into account the priority of different data types and only when the highpriority data packets queue is empty, the data packets in low-priority data queue can be transmitted. Simulation results show that, to let the new voice call delay in the allowable range, can effectively reduce the dropping probability of handoff call and the blocking probability of high-priority data while improving the probability of new call to enter into the systems.

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“…Several schemes have been proposed in the literature for pre‐emption control in different networks . A priority‐scaled pre‐emption scheme for Third Generation Partnership Project Long Term Evolution networks using allocation and retention priority (ARP) has been proposed in .…”

Section: Introductionmentioning

confidence: 99%

A pre‐emption framework for UMTS compatible satellite system supporting multimedia traffic

Pillai

Halliwell

2014

Satell Commun Network

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An adaptive bandwidth borrowing-based Call Admission Control scheme for multi-class service wireless cellular networks

Cited by 10 publications

References 14 publications

Bandwidth borrowing‐based QoS approach for adaptive call admission control in multiclass traffic wireless cellular networks

Bandwidth borrowing‐based QoS approach for adaptive call admission control in multiclass traffic wireless cellular networks

Improvement Priority Handoff Scheme for Multi-Service Wireless Mobile Networks

A pre‐emption framework for UMTS compatible satellite system supporting multimedia traffic

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