QoS differentiation for initial and bandwidth request ranging in IEEE802.16

Peyre, T.; El-Azouzi, Rachid; Chahed, Tijani

doi:10.1109/pimrc.2008.4699502

Cited by 5 publications

(14 citation statements)

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“…In [19,28,30] we completed a performance evaluation for the IEEE802.16e and HSDPA standards. We focused on the effects of the standardized AMC and code partitioning [29] schemes. Here, we proposed a CAC algorithm where a bandwidth share of the total bandwidth are allocated to ease the migration which consumes more resources.…”

Section: Discussionmentioning

confidence: 99%

The Uplink Capacity Evaluation of Wireless Networks: Spectral Analysis Approach

Kobbane

El-Azouzi

Ibrahimi

et al. 2010

CIT

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International audienceIn this paper we study the capacity of wireless cellular network, in particular the uplink of WCDMA system by using the two dimensional continuous-time Markov chain (CTMC) technique. Considering two types of calls: real-time (RT) calls characterized by a quasi fixed transmission rate, and best-effort (BE) calls which do not require strict demand but need some reliability conditions, we develop an approach based on the spectral analysis for evaluating the cell capacity. We explicitly obtain the simultaneous distribution of the number of RT connections and the number of BE connections in the steady-state. This analysis allows us to simplify the computation of the performance measures including expected delay and throughput of BE traffic. These performances are obtained explicitly in both cases (finite and infinite) of BE calls as function of system parameters like arrival rate of BE and RT calls, service rate of BE and RT calls. These results allow the operator to evaluate the cell capacity by varying these parameters independently of the number of BE calls according to its policy to manage the network. We further propose some CAC (Call Admission Control) policies for BE traffic. We finally conclude this work with some numerical and simulation results. The simulation results obtained by the network simulator (NS2) are closely related to the numerical results of our analytical results which validate our theoretical model

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Section: Discussionmentioning

confidence: 99%

The Uplink Capacity Evaluation of Wireless Networks: Spectral Analysis Approach

Kobbane

El-Azouzi

Ibrahimi

et al. 2010

CIT

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“…Moreover, they consider that the incoming processes of any type of calls or packets are independent. Nevertheless, since in WiMAX, all mobiles share a finite number of CDMA codes, the arrivals of these calls should be dependent, as proved by [13]. Indeed, the authors develop a model of MAC access to signaling requests based on the different priority classes using the differentiation of the backoff parameters and the free codes for these classes.…”

Section: Related Workmentioning

confidence: 99%

Resources Management of Mobile Network IEEE 802.16e WiMAX

Daleel¹,

Ali²

2017

ijacsa

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Abstract-The evolution of the world of telecommunications towards the mobile multimedia following the technological advances has demonstrated that to provide access to the network is no longer sufficient. The need for users is to access value-added multimedia services in their own home environment regardless of how they access the systems. Multimedia services require high transfer rates and have quality service requirements. They must coexist with services with real time constraints such as the voice service which does not tolerate variation of the delay between sending and receiving packets. The guarantee of these services by the operator becomes much more difficult in the technologies that take into account the mobility of the users. This paper studies the IEEE802.16e system according to the continuous modeling case. A model of the IEEE802.16e cell is proposed and allows the decomposition of the cell according to the principle of the AMC adaptive modulation and coding technique. The model is based on an admission control mechanism in the presence of two types of real-time and nonreal-time traffic. The model is based on a new CAC strategy with intra-cell mobility and gives the same QoS for the calls of this traffic by favoring the calls in progress on the new arrivals.

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“…We consider two classes of traffic: real-time (RT), corresponding to UGS or rtPS classes, and non-real-time (NRT), corresponding to nrtPS and BE. In addition, we consider the case when the codes dedicated to the ranging requests are distributed between the classes [2].…”

Section: Introductionmentioning

confidence: 99%

“…Many studies in the literature assumed that packets or calls arrive to the system according to poisson process for the sake of analytical simplicity. However, it has been recently proved that the exponential distribution is inappropriate [2]. Based on the generalized traffic processes developed [2], we study the media access control (MAC) layer of WiMAX and develop a resource allocation that maintain the bit rate of real time connections independently of the user position in the cell.…”

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confidence: 99%

IEEE802.16 Multi-class Capacity including AMC scheme and QoS Differentiation for Initial and Bandwidth request ranging

Peyre¹,

Ibrahimi²,

El-Azouzi³

2008

Proceedings of the 3rd International Conference on Performance Evaluation Methodologies and Tools

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In this paper we study the capacity of the OFDMA-based IEEE802.16 WiMAX network in the presence of two types of traffic, streaming (Real-Time) and elastic (Non-Real-Time) including Adaptive Modulation and Coding (AMC). Many studies in the literature assumed that packets or calls arrive to the system according to poisson process for the sake of analytical simplicity. However, it has been recently proved that the exponential distribution is inappropriate [2]. Based on the generalized traffic processes developed [2], we study the media access control (MAC) layer of WiMAX and develop a resource allocation that maintain the bit rate of real time connections independently of the user position in the cell. Using Markovian analysis we evaluate the impact of our resource allocation on the non-real time connection (NRT) as expected delay and throughput.

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QoS differentiation for initial and bandwidth request ranging in IEEE802.16

Cited by 5 publications

References 5 publications

The Uplink Capacity Evaluation of Wireless Networks: Spectral Analysis Approach

The Uplink Capacity Evaluation of Wireless Networks: Spectral Analysis Approach

Resources Management of Mobile Network IEEE 802.16e WiMAX

IEEE802.16 Multi-class Capacity including AMC scheme and QoS Differentiation for Initial and Bandwidth request ranging

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