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The broadcast method is the most efficient approach to deliver a popular video for utilizing bandwidth. By combining the Fibonacci and staircase methods, this paper presents a hybrid broadcasting method with low buffer requirement to deliver a constant bitrate compressed video. The proposed method allows users with bandwidth of double of the consumption rate to download and watch the video without...
Recently many countries have kept studying on the methods of constructing ultra speed networks. Task Force team for IEEE 802.3ah has accomplished the standardization of EPON which is the next generation subscriber access network. EPON doesn't still have the bandwidth wide enough to support the new service which demands high bandwidth. Therefore 10 G EPON is the next generation subscriber access network...
This paper describes an adaptive scheme for Call Admission Control (CAC) for multi-class service wireless cellular networks. The proposed CAC scheme can be achieved through call bandwidth borrowing and call preemption techniques according to the priorities of the traffic classes, using complete sharing of the available bandwidth. However, the CAC scheme maintains QoS in each class to avoid performance...
The current mine industrial Ethernet that put into use did not connect and transmit multimedia video load in parallel, aimed at the actual working condition of severe influence on real time of network transmission that caused by multimedia load, and in order to transmit data load and multimedia load in real-time, it is necessary to design one effective scheduling strategy. According with the requirements...
Advances in broadcasting technology are generating an increasing demand for video on demand (VoD) applications. In a video broadcasting methods, one of the major challenges is how to reduce a viewer's waiting time and client's buffer requirement in a given bandwidth allocation. In order to solve these problems, many significant broadcasting methods had been proposed. In this paper, we propose a pseudo...
Tremendous efforts have been conferred towards the congestion control concern in mobile wireless networks while dealing with maximizing both throughput and fair bandwidth allocation. Unfortunately, this is made limited by the variable and unpredictable behaviour of such networks. In this paper we propose a new congestion control mechanism for multimedia traffic in mobile wireless networks. Our proposed...
Layering techniques effectively cope with network heterogeneity encountered in media distribution. Recent work on network coding shows that the multicast throughput can be greatly improved by allowing coding operation at the intermediate nodes in the network. In this paper, we study the problem of lexicographically fair bandwidth allocation to make the receivers of different sessions share network...
Multicast routing in multirate mesh network wireless networks is challenging, mainly due to multirate transmissions and quality of services guarantee. In this paper, we present a self-learning multicast routing algorithm for multirate WiFi (Wireless Fidelity) mesh network. First, we design a self predict routing information mechanism to predict the delay and bandwidth of every multicast tree. The...
We discuss a fundamentally new approach to digital packetized video bandwidth prediction (i.e., bandwidth forecasting). This fundamentally new approach provides an accurate bandwidth forecast at the expense of increased queueing delay. We outline this new forecasting method we call feedforward bandwidth indication (FFBI), compare it to existing forecasting methods, and analyze the tradeoffs associated...
Quickly acquiring the data required from network node environments to share files in the vast P2P network environment is a challenging job. Many researches have proposed data sharing mechanisms and scheduling methods in P2P environments, however, most focused on the efficient utilization of network bandwidth, using greedy methods to deliver the data to the client end as early as possible. However,...
This paper identifies a dynamic cross-layer architecture for QoS provisioning of multimedia services on an all-IP-based DVB-RCS/S2 satellite network. The proposed dynamic QoS architecture presents three cross-layer interfaces: one between the application and network layers on the satellite terminals (ST), which allows the provision of dynamic guaranteed QoS for multimedia applications and the user...
It was reported that the distribution of multimedia traffic flows among different radio access networks can enable better network utilization than the transmission via single network. Aggregated radio resource management is a process that can efficiently manage the allocation and deallocation of radio resources among different radio access technologies so that mobile users are allowed to enjoy seamless...
With rapid advances in multimedia and wireless network technologies, it is now feasible to provide live video streaming over wireless networks. However, since bandwidth is a scarce resource in wireless networks, it is important to design an adaptive bandwidth allocation scheme for video streams to make efficient use of wireless bandwidth. In this paper, we propose an adaptive bandwidth allocation...
To ensure the Access Point (AP) based Quality of Service (QoS) especially for multimedia communications, it is important to know the bandwidth performance of a transmission media cumulatively what will be a truth for all the nodes under an AP. So that one node can control the transmission rate stability. In order to improve the QoS or experienced audiovisual quality through a link, the effectiveness...
Network bandwidth allocation is crucial for certain applications with quality of service (QoS) requirement such as multimedia in network storage system. And the iSCSI OSD storage system is a object-based system which is a novel network storage technology. In this paper associating with the character of the iSCSI OSD storage system, we propose the priority-based greed bandwidth allocation (PBGBA) algorithm...
To ensure the access point (AP) based quality of service (QoS) especially for multimedia communications, it is important to know the Bandwidth performance of a transmission media. And the limitation of existing fixed channel allocation caused the degradation on overall throughput of the wireless local area network (WLAN). This paper proposes a new bandwidth estimation technique and dynamic channel...
Internet video on demand is a new application provided by peer to peer network. Thousands of users are using real multimedia streaming systems like PPlive and PPstream which are the killer applications in the Internet. But jitters are always happening during rush time especially when users are watching less popular videos with low bandwidth network. To improve this, a cache scheduling scheme based...
Bandwidth management in 802.11 wireless networks is becoming the main issue that should be overcome for IP multimedia services delivery such as IPTV, VoD, VoIP, etc. In this paper, we propose an adaptive bandwidth allocation based on adaptive transmission opportunity to overcome the guaranteed bandwidth issue. This scheme allows the video stream to take up the 802.11 channel proportionally to its...
The UDP transport protocol has been fore selected for the most of multimedia traffic transport on mobile wireless networks. Nevertheless, it exhibits some problems related to bandwidth sharing between several traffic sources, as well as TCP friendliness with established TCP connections on the network. In this paper, we propose a combined mechanism, the PRDR: proportional and derivative algorithm for...
The current trend in wireless communication networks involves the integration of different wireless access technologies into a single operator network. The possible leveraging of high deployment costs, and the possibility to increase revenue have also introduced the concept of network sharing between different operators. The problem of optimal allocation of bandwidth to multimedia applications over...
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