Resource allocation and connection admission control in satellite networks

Koraitim, H.; Tohmé, Samir

doi:10.1109/49.748818

Cited by 27 publications

(15 citation statements)

References 13 publications

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“…References [22,23,[36][37][38] and references therein). The satellite system is managed at the call level, looking for movable boundary access techniques through dynamic reactions performed by the resource management agent to face variable system conditions.…”

Section: Optimization Problems In Telecommunication Networkmentioning

confidence: 99%

Resource allocation in satellite networks: certainty equivalent approaches versus sensitivity estimation algorithms

Davoli¹,

Marchese²,

Mongelli³

2005

Int. J. Commun. Syst.

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In this paper, we consider a resource allocation problem for a satellite network, where variations of fading conditions are added to those of traffic load. Since the capacity of the system is finite and divided in finite discrete portions, the resource allocation problem reveals to be a discrete stochastic programming one, which is typically NP-hard. We propose a new approach based on the minimization over a discrete constraint set using an estimation of the gradient, obtained through a 'relaxed continuous extension' of the performance measure. The computation of the gradient estimation is based on the infinitesimal perturbation analysis technique, applied on a stochastic fluid model of the network. No closed-forms of the performance measure, nor additional feedback concerning the state of the system, and very mild assumptions on the probabilistic properties about the statistical processes involved in the problem are requested. Such optimization approach is compared with a dynamic programming algorithm that maintains a perfect knowledge about the state of the satellite network (traffic load statistics and fading levels). The comparison shows that the sensitivity estimation capability of the proposed algorithm allows to maintain the optimal resource allocation in dynamic conditions and it is able to provide even better performance than the one reached by employing the dynamic programming approach

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Section: Optimization Problems In Telecommunication Networkmentioning

confidence: 99%

Resource allocation in satellite networks: certainty equivalent approaches versus sensitivity estimation algorithms

Davoli¹,

Marchese²,

Mongelli³

2005

Int. J. Commun. Syst.

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“…Recently, Koraitim et al propose another movable boundary scheme [12] for satellite networks. It divides a TDM frame into three compartments, where the extra compartment can be accessed by both voice and data according to a certain pre-defined resource sharing rule.…”

Section: Introductionmentioning

confidence: 99%

“…Meanwhile, since she only considers voice and data traffic in her research, a further study for the MAC protocol to also include video transmission needs to be carried on. All these aspects motivate us to extend the MAC protocol in TDMA-based voice and data integration systems [12] to hybrid TDMA/CDMA multimedia traffic (video/voice/data) systems, and to try out the proper mathematical methods to evaluate the protocol.…”

Section: Introductionmentioning

confidence: 99%

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A MAC Protocol for Multimedia Traffic in Slotted CDMA Wireless Communication Systems

Gunawan

2005

Wireless Pers Commun

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In this paper, a media access control (MAC) protocol is proposed for multimedia traffic in slotted CDMA wireless communication systems. The channel resource is partitioned into four compartments: video, voice and data compartments, and common resource pool (CRP) which can be used by either voice or data. Video is only permitted to use its pre-allocated channels. Besides assigning voice to its own compartment, a threshold type decision policy is introduced to regulate voice call admission control in CRP. Data can use not only data and CRP compartments, but also the idle capacity of both video and voice. The proposed protocol provides a simple and flexible resource allocation decision for the multimedia traffic such that the bandwidth can be utilized efficiently while satisfying the quality of service (QoS) requirement for each traffic category. Two mathematical analysis methods are applied to evaluate the system performance. The first, Traditional Markov Analysis (TMA) is used to calculate the video and the voice blocking probabilities, and the second, Transient Fluid Analysis (TFA) is adopted to evaluate the average data delay and the channel utilization. Computer simulations verify the accuracy of mathematical models.

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“…The QoS provided by the access network to the user requirements can be defined at the MAC layer as a set of Transfer Capabilities MTCs. Three MTCs can be defined: CBR, Bursty Data and Best Effort [20].…”

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confidence: 99%

Quality of Service Aspects of Transport Technologies for the UMTS Radio Access Network

Koraitim

Schäfer

Tohmé

2000

Personal Wireless Communications

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Abstract:The radio access network of upcoming third generation mobile communication systems is currently a subject of intense research and standardization efforts. This article discusses in the first part quality of service aspects of the realization of the transport network using the currently most concurring technologies for this issue: AlM adaptation layer 2 (AAL-2) and IP. The second part of the paper considers architectural alternatives for realizing the radio access network with satellite communications.

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Resource allocation and connection admission control in satellite networks

Cited by 27 publications

References 13 publications

Resource allocation in satellite networks: certainty equivalent approaches versus sensitivity estimation algorithms

Resource allocation in satellite networks: certainty equivalent approaches versus sensitivity estimation algorithms

A MAC Protocol for Multimedia Traffic in Slotted CDMA Wireless Communication Systems

Quality of Service Aspects of Transport Technologies for the UMTS Radio Access Network

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