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Fiber-wireless (FiWi) access mesh networks have been proposed as flexible and cost-effective solutions for future access networks. However, for FiWi access mesh networks to provide end-to-end QoS guarantees to its customers, efficient QoS routing schemes and scheduling policies become necessary. Here we provide a model, using repeated game theory, that creates ground for scheduling policies to be...
Wireless mesh network (WMN) has recently emerged as a promising technology for next-generation wireless network. In WMNs, many important applications, such as audio/video conferencing and distance education, require the support of multicast communication with quality-of-service (QoS) guarantee. In this paper, we investigate the issues of QoS multicast routing in wireless mesh networks. The paper studies...
In a wireless mesh network (WMN), mesh clients (MCs) access the Internet through the wireless backbone formed by the Internet Gateways (IGWs) and Mesh Routers (MRs). An IGW as the traffic center may easily become the congestion center in a WMN. The load balancing between IGWs will reduce the traffic congestion thereby improving the network performance and providing a better quality of service (QoS)...
Nowadays, Wireless Mesh Networks (WMN) are increasingly supporting jointly non real-time and real time applications that required a guaranteed bandwidth. A new methodology is presented throughout this study to show that an important aspect of dimensioning WMNs, considering mobility of users, fairness and their demand according to two types of running applications. This leads to satisfying voice demand...
This paper presents an overview of random early detection algorithm and differentiated services on ns2. In the present scenario of computer networks the traffic is increasing exponentially due to which packet losses are also increasing at a great rate. An active queue management in routers and gateways can potentially reduce packet loss rates in the Internet. In this paper we have proposed use of...
Routers configure their paths based on the Link State Database (LSDB) in order to meet service requirements and Quality of Service (QoS) guarantee. Internet routing can be categorized into intra domain routing and inter domain routing, and QoS should be guaranteed both at the intra and inter domains for end-to-end QoS guarantee. The LSDB can be easily managed and updated at the inter domain routing...
Wireless mesh networks (WMNs) are an emerging architecture for multi-hop transmission where the nodes have relative fixed positions and communicate to the Internet through one or more gateways. Our goal is to maximize the network utilization by balancing the traffic load, while providing fair service and QoS guarantees to the users. In this paper, we provide an efficient method that elegantly balances...
Random Early Detection (RED) can effectively avoid transmitting congestion at routers, but RED can not provide bandwidth fairness. Different packet sizes are one of the reasons that damage fairness. RED routers provide little protection from some bulky data flows that use considerably more bandwidth than other flows in time of congestion. Modifying the formulas of calculating final packet-discard...
A home gateway (HG) acts as border router by selecting the correct route to different appliances using devices address and supervising resource assignment between the local and access networks. From the quality of service standpoint, minimizing the number of failures for this equipment is a way to gain customerpsilas confidence. To reach this goal, when a service terminates abnormally, the overall...
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