WiMAX Module for the ns-2 Simulator

Freitag, Juliana; Fonseca, Nelson L. S. da

doi:10.1109/pimrc.2007.4394155

Cited by 18 publications

(11 citation statements)

References 6 publications

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“…Also, it can be characterized by different performance criteria that include basic availability, the loss rate, throughput, average delay, security, etc… To provide an efficient level of QoS support, many mechanisms can be managed tightly coupled and plays an essential role in determining the network performance [11,12,13,14,15]:…”

Section: Qos Managementmentioning

confidence: 99%

Design of Scheduling Algorithm for QoS Management on WiMAX Networks

Guesmi¹,

Maaloul²,

Tourki³

2012

COMPUTER

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The apparition of high speed networks and the fast evolution of communication offer currently an unlimited access to an important number of applications. The applications constraints (videoconferencing, communications, VoIP, applications multimedia, etc…) are more complex for wireless systems because they require more constraints: high throughput, low packet loss, low latencies and gigue delays. All present flows in the WiMAX network must share the same medium capacity. Therefore, WiMAX is required to fulfill QoS requirements of any application and information passing over the network. Several mechanisms for QoS management have been studied, among these mechanisms there is an appropriate scheduler implementation for packets carried on WiMAX network which can increase QoS achievement possibility.WiMAX module used in our simulation deploys scheduling algorithms (FIFO, FQ, DRR, and WFQ) to deal with packets transmission. This paper is aimed at evaluating these algorithms in relation with WiMAX network performance. Performance metrics reported in this work are packet loss, throughput, and average delay. This paper tries to design an architecture which is able to convey the data belonging to various classes of traffic that guarantee their respective needs. Simulation results can show the performance of scheduling schemes used in this architecture.

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Section: Qos Managementmentioning

confidence: 99%

Design of Scheduling Algorithm for QoS Management on WiMAX Networks

Guesmi¹,

Maaloul²,

Tourki³

2012

COMPUTER

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“…RELATED WORK Nowadays, there are many performance analysis investigations of the IEEE 802.16 standard [9][10][11][12][13][14][15]. Several papers have studied the IEEE 802.16 performance metrics by simulation, theoretic analysis, or both.…”

Section: Introductionmentioning

confidence: 99%

“…They consider backoff mechanisms for bandwidth allocation, not polling. In [14] authors had designed WiMAX-module for NS-2. This module includes mechanisms for bandwidth requests and allocation.…”

Section: Introductionmentioning

confidence: 99%

“…Unfortunately, such distributed multidimensional queuing models do not have a strict analytical solution in the realistic problem statement that takes in account real conditions of a MAC operational environment [4]. A few analytical models have been presented in literature to analyze the WiMAX-like MAC performance [9][10][11][12][13][14][15]. However, it was possible to find the analytical results only under strong simplifying assumptions: one-dimensional infinite queues without priority, excluding errors, homogeneous traffic, static QoS control, short-delay medium (i.e., small round-trip-time), etc.…”

Section: Introductionmentioning

confidence: 99%

“…In other words, the results of recent analytical researches were obtained without paying attention to many conditions, which characterize the principles of WiMAX protocol. Therefore, the simulation is used to estimate the adequate MAC characteristics in real conditions of the wireless environment [13][14][15].…”

Section: Introductionmentioning

confidence: 99%

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Performance analysis of the enhanced mesh MAC protocol of mobile WiMAX standard

Markhasin

Drozdova

2010

2010 IEEE Region 8 International Conference on Computational Technologies in Electrical and Electronics Engineering (SIBIRCON)

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In this paper we investigate performance of enhanced medium access control (MAC) protocol of the IEEE 802.16e standard (mobile WiMAX). We consider the multipoint-to-multipoint (MPMP) mode MAC because it allows organization of fully mesh and more flexible networks then point-to-multipoint mode (PMP). Enhanced WiMAX features are useful for building a low-cost broadband telecom infrastructure in BRIC and other countries with multiple remote, rural and difficult for access (RRD) territories. We consider probability-time characteristics as average packet delay. These characteristics are derived by the numericanalytic method of the load intensity balance. The paper is aimed at demonstration of frame sizes, bandwidth requests sizes and round-trip delay influence on the standards' MAC protocol characteristics. The obtained results display effective ways for essential enhancement of the distributed long-delay WiMAX MAC.

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