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It is difficult to provide QoS guarantees for streams in wireless network based on IEEE802.11 DCF because of limited bandwidth. Taking CBR traffic as example, we studied the traffic performance with different parameters in this paper. The results show that for an overloaded network, the traffic with longer packet size has greater throughput. Since the MAC layer performs the same competitive algorithm,...
This paper studies the problem of utility maximization for clients with delay based QoS requirements in wireless networks. We adopt a model used in a previous work that characterizes the QoS requirements of clients by their delay constraints, channel reliabilities, and timely throughput requirements. In this work, we assume that the utility of a client is a function of the timely throughput it obtains...
The following article is about the network quality of service issues, which is a set of technologies that enable to users obtain from the network predicted level of services basing on particular rules e.g. throughput, delay and jitter. An investigation and comparison of QoS mechanisms, focusing on the Internet protocols has been done here, to analyze and compare existing solutions. Beginning from...
Wireless networks and multimedia applications are two rapidly emerging technological trends. The IEEE 802.11e protocol has been developed to support QoS for such delay-sensitive applications in wireless networks. This protocol has also been extensively studied in the literature over the past few years, and several mechanisms to improve its performance have been proposed concentrating on ways to reinforce...
In this paper, a new algorithm, intelligent agent antnet based routing algorithm (IANRA) is proposed to enhance load balancing strategy in wireless networks (WNs). IANRA is based on ants behaviour with some important factors such as: the specific self-organizing behaviour of ant colonies, the shortest path discovery and the related framework of ant colony optimization (ACO). The main focus in IANRA...
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