Priority-based congestion control using hierarchical trees MDC in WiMAX networks providing multicasting services

In Broadband Wireless Access (BWA) networks, provisioning of Quality of Service (QoS) is absolutely essential for real time and non real time services. Congestion in these networks can lead to deterioration in QoS experienced by the network users. Congestion avoidance is rarely considered to ensure the QoS of wireless connections. Efforts are mainly aimed at reducing the overload once it has occurred. To avoid congestion at the base station in WiMAX networks, the WiMAX Fair Intelligent Congestion Control (WFICC) was proposed to ensure the traffic is scheduled in such a way that the base station output buffer operates around a target operating point without violating the QoS requirements of connections. The aim of this paper is to investigate WFICC thoroughly and evaluate its performance in terms of throughput, delay and jitter for different Classes of Services (CoSs) under various parameter settings of the algorithm. A detailed and comprehensive simulation study on various settings of parameters is performed in ns-2. The results show that WFICC performs excellently in allocating resources fairly among Class of Services (CoSs) and also preserves their QoS requirements. Furthermore, WFICC is robust and easily adapted to various traffic conditions.

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An Efficient Congestion Control Scheme for Data Using Tokens in Network

International Journal of Scientific Research ◽

10.15373/22778179/nov2013/33 ◽

2012 ◽

Vol 2 (11) ◽

pp. 104-106

Author(s):

C.Md.Jamsheed C.Md.Jamsheed ◽

◽

D.Surendra D.Surendra ◽

D.Venkatesh D.Venkatesh

Keyword(s):

Congestion Control ◽

Control Scheme

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A DTN Congestion Control Method based on Node Store Status

10.23940/ijpe.18.10.p19.24322440 ◽

2018 ◽

Author(s):

Wei Jiang

Keyword(s):

Congestion Control ◽

Control Method

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Routing Optimization with Efficient Second Order Distributed Approach Using Congestion Control Rules

International Journal of Advanced Research in Computer Science and Software Engineering ◽

10.23956/ijarcsse/v7i7/0208 ◽

2017 ◽

Vol 7 (7) ◽

pp. 363

Author(s):

Jaya Pratha Sebastiyar ◽

Martin Sahayaraj Joseph

Keyword(s):

Congestion Control ◽

Second Order ◽

Back Pressure ◽

Order Method ◽

Delay Performance ◽

Routing Optimization ◽

Distributed Approach ◽

Control Rules ◽

Primal Dual ◽

Queue Stability

Distributed joint congestion control and routing optimization has received a significant amount of attention recently. To date, however, most of the existing schemes follow a key idea called the back-pressure algorithm. Despite having many salient features, the first-order sub gradient nature of the back-pressure based schemes results in slow convergence and poor delay performance. To overcome these limitations, the present study was made as first attempt at developing a second-order joint congestion control and routing optimization framework that offers utility-optimality, queue-stability, fast convergence, and low delay. Contributions in this project are three-fold. The present study propose a new second-order joint congestion control and routing framework based on a primal-dual interior-point approach and established utility-optimality and queue-stability of the proposed second-order method. The results of present study showed that how to implement the proposed second-order method in a distributed fashion.

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