This paper addresses the problem of congestion control and fairness in relay systems for Connection Mode LAN/WAN interworking. To ensure congestion collapse avoidance and fairness against QoS parameters, a channel service algorithm and an acknowledgment algorithm are proposed and evaluated by simulations. Results show that, in a situation of overload and for different traffic patterns with diff...

Due to the isochronous nature of multimedia data streams, they require special handling by the underlying data network to provide guaranteed Quality of Service (QoS). For pre-orchestrated multimedia documents, the important QOS parameters are bandwidth, jitter and reliability. A data network may employ a large number of service disciplines that provide guaranteed QoS, such as PGPS, SCFQ, VC, WF...

Broadband access is an important requirement to satisfy user demands and support a new set of real time services and applications. WiMAX, as a Broadband Wireless Access solution for Wireless Metropolitan Area Networks, covering large distances with high throughput and is a promising technology for Next Generation Networks. Nevertheless, for the successful deployment of WiMAX based solutions, Qu...

Many globally distributed cloud computing (CC) applications and services running over the Internet, between globally dispersed clients and servers, will require certain levels of QoS in order to deliver and give a sufficiently smooth user experience. This would be essential for real-time streaming multimedia applications such as online gaming and watching movies on a pay as you use basis hosted...

Heterogeneous wireless/wired networks and ubiquitous environments are gaining ever more attention by research community. To properly control and manage such puzzles a deep knowledge of quality of service parameters is needed and, therefore, a complete and robust performance assessment is necessary. This paper deals with a performance evaluation and measurement of a number of heterogeneous end-t...

Due to the advances of network technologies and multimedia communications, Quality of Service (QoS) becomes an increasingly important issue in network communications. Many traditional assessment techniques were designed to evaluate the QoS of multimedia applications transmitted over these networks. In this paper, a new QoS evaluation system has been developed. The proposed system is based on us...

Cloud computing is an Internet-based computing model. This model enables access to resources and services on demand. Cloud computing users have applications with different Quality of Service requirements. On the other hand, there are different cloud service providers offering services with different qualitative characteristics. Determining the best cloud computing service for a specific applica...

In this study, throughput and delay performance of IEEE 802.11b and 802.11e is presented under non-saturation conditions. In order to improve the performance of IEEE 802.11b, the IEEE 802.11e has been proposed to improve the Quality of Services (QoS) for multimedia application. The standard 802.11b CSMA/CA contention mechanism does not support QoS but the standard 802.11e provides QoS by adjust...

Efficient radio resource allocation algorithm is proposed in this paper. Proportional fair algorithm gives favorable performance compared to two classical algorithms max-C/I and RR. But PF algorithm does not consider QoS parameters while allocating resources to the users. Moreover with less transmission power utilization Fairness disappears in PF algorithm. A PFQoS-Centric is proposed in this p...