The number of real-time applications, such as video-on-demand and video conferencing, is rapidly increasing. Realtime data now occupies a significant portion of network traffic. These applications require real-time service; as such, they need to bound end-to-end delays. Generally, real-time service is provided by reserving bandwidth in advance. Thus, to admit a large number of real-time applica...

Multi-port memory controllers (MPMCs) have become increasingly important in many modern applications due to the tremendous growth in bandwidth requirement. Many approaches so far have focused on improving either the memory access latency or the bandwidth utilization for specific applications. Moreover, the application systems are likely to require certain adjustments to connect with an MPMC, si...

For efficient spectrum utilization in cognitive radio networks it requires appropriate allocation of idle frequency spectrum among coexisting cognitive radios while maximizing total bandwidth utilization and minimizing interference. The fixed spectrum allocation scheme leads to low spectrum utilization across the whole spectrum. This paper is an attempt to overcome the problem in such wireless ...

Several schemes for the transport of Internet data traac over ATM are currently being investigated by researchers as well as by standardization bodies. Typically, the main focus of these investigations has been on addressing and switching strategies. Relatively little attention has been given to the eecient allocation, utilization and management of the underlying ATM bandwidth, and to the eecie...

Wireless mesh networks(WMNs) provide connectivities and services to participating nodes by establishing a mesh topology through self-organization and selfconfiguration of mesh routers and clients. Mesh nodes can be equipped with multiradios to improve the overall capacity of the WMNs. Nodes avoid interference with each other by tuning to different channels of the spectrum space. The key problem...

Per-flow unfairness of TCP throughput in the IEEE 802.11 wireless LAN (WLAN) environment has been reported in past literature. A number of researchers have proposed various methods for alleviating the unfairness; most require modification of MAC protocols or queue management mechanisms in access points. However, the MAC protocols of access points are generally implemented at hardware level, so ...

Video broadcast/multicast over wireless access networks is an attractive research issue in the field of wireless communication. With the rapid improvement of various wireless network technologies, it is now possible to provide high quality video transmission over wireless networks. The high quality video streams need higher bandwidth. Hence, during the video transmission through wireless networ...

Real-time streaming delivery over the Internet with bandwidth variation is a very challenging task. It is important to smooth the quality variability and improve the utilization of the available network bandwidth. In this paper, we propose a real-time optimal smoothing scheduling algorithm for network adaptive video streaming with the variable network bandwidth and packet loss. The algorithm ad...

Despite the rapid development of the resilient packet ring (RPR) technology, the available bandwidth allocation algorithms for RPR networks do not provide satisfactory solutions to meet their performance requirements. To attack this problem, this paper proposes an algorithm, which we call the distributed bandwidth fair allocation (DBFA) algorithm, that achieves the key RPR performance goals, i....

In this paper, we introduce the Pre-cross-connected Segment First —PXSFirst protection scheme; a new path-based protection schemes for WDM optical networks. The goal of the PXSFirst scheme is to achieve fast recovery, while maximizing bandwidth sharing to improve bandwidth utilization. Similar to pre-cross-connected trails (PXTs) protection scheme, PXSFirst ensures that all backup paths are pre...