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Development of multimedia from year to year increasing with the growing support of computer networks such as wireless LAN (WLAN) as a media intermediary. The one of method is streaming multimedia delivery over the internet from the server to the client to respond to client requests to a video and audio contained in a computer network. Factors that affect the streaming is bandwidth. These factors may...
In our previous work [6], we proposed a cluster based two-phase PPIR protocol to repair the lost packets among end users during the 3G Base Station (BS) broadcast. The PPIR protocol achieves better performance compared with others since cluster heads have the full knowledge of each cluster and collect the data packets efficiently by exchanging control information with cluster members during the first...
Nowadays, real time traffic over wireless networks is increasing sharply. In addition, network scale is larger due to new facilities as offered by wireless mesh networks. However, the differences between (1) the infrastructure capacities, (2) the end users devices technologies, (3) the number of users, and (4) the number of real time applications are implying the need of more dynamic quality of service...
With the rapid proliferation of wireless services into automotive domain, it is of paramount importance to understand how reliably data can be sent through a custom wireless local area network (WLAN). Thanks to a large body of research, WLAN throughput under saturated and non-saturated traffic condition has been well understood. In this paper, we preset the performance model for ad hoc multimedia...
In the last decade, both mobile and multimedia communications have experienced unequaled rapid growth and commercial success. However, transmitting multimedia flows over wireless Ad hoc network remains an extremely challenging issue due to the limited battery lifetime of the wireless nodes. The focus, of this paper, is to design a new efficient protocol optimizing the energy consumption when transmitting...
Infotainment service is getting popular in vehicular ad hoc networks (VANETs). Through inter-vehicle communication, vehicles can retrieve data from other vehicles, including multimedia data. In this paper, we propose an Overlay Multicast for VANETs (OMV). In OMV, interested vehicles (called group member nodes) join a multicast tree initiated by a vehicle providing multimedia data as the multicast...
Wireless sensor networks can be used to deploy various applications to reflect the circumstance of environment. Video sensors used in wireless multimedia sensor networks (WMSNs) enhance such applications with multimedia data, but with specific characteristics requirement for the network. The aim of this work is to provide reliable data transport with multipath routing and load balancing congestion...
An architecture for wireless communication between control centers and registered users in emergency situations when the cellular network is not operational is described. It is based on delay tolerant networks (DTN) and enables mobile users with multiple radio interface technologies to communicate across heterogeneous network technologies. With the help of asynchronous bundles passing from hop to...
The following topics are dealt with:context aware computing; sensor networks; MIMO communication systems; ad-hoc networks and routing; wireless computing; wireless multimedia; and emerging networks.
The availability of multimedia contents to be played back while driving constitutes an added value to both drivers and passengers, improving the travel experience. These contents can be already on-board, diffused through broadcast networks or delivered on demand by servers as data streams. Vehicular ad-hoc networks allow envisaging a new way to access multimedia contents based on epidemic data dissemination,...
The following topics are dealt with: wireless systems; wireless LAN; vehicular communication system; digital rights management; ad hoc and sensor networks; routing and QoS; peer-to-peer overlays; security in personalised networks; visible light communications; multimedia communication; content distribution; cellular networks; cognitive radio and wireless home networks.
In this paper, we aim at providing a solution to the problem of network congestion that arises when huge amount of data such as multimedia data is transferred in mobile ad hoc networks. This issue has been addressed by designing a protocol that performs routing intelligently and minimizes the delay in data transmission. The objective of this work is to move the traffic away from the shortest path...
Recent advances in high-speed wireless LANs with physical layer (PHY) rates reaching 600Mbps make them ideal for multimedia applications. It has been shown that efficiency at medium access control (MAC) layer decreases with increasing the PHY rate. To achieve high efficiency, few researches have tried to use aggregation in which few packets are concatenated into a larger frame. The resultant frame...
Deployment of video communication services over mobile ad hoc networks faces numerical obstacles since the networks are characterized by limited and unpredictable bandwidth. Following the tenet of service-orientation, this study proposes a cross-layer design for fine-grained adaptive transmission of real-time video over time-varying channels. Specifically, the sender accurately estimates the current...
The following topics are dealt with: ad hoc and sensor networking; communications and information systems security; communications QoS, reliability and modeling; communication software, services and multimedia applications; communication theory; next-generation networking; optical networks and systems; selected areas in communications; signal processing for communications wireless communications;...
In the few last years, there is an increasing need of QoS guarantees for multimedia and real time applications in mobile ad hoc networks. While several QoS routing protocols were proposed, adaptive routing has not be enough exploited. This paper introduces a new multipath quality of service (QoS) routing protocol for mobile ad-hoc networks (MANETs) called QoSBeeManet. Based on the autonomic bee communication...
This paper focuses on studying the performance of TPGF geographic routing algorithm with multi routing metric called McTPGF in random duty-cycled wireless multimedia sensor networks (WMSNs). The multi-metric contains the geographic distance and the time, which is called sleeping-delay in this paper, the forwarding node waits to forward packet to the neighbor node after it wakes up. We recognize the...
In this paper, we propose a delay-aware multipath source routing (DMSR) protocol to provide QoS support for real-time multimedia applications in wireless ad hoc networks. Based on local information, node delay is calculated as metric for route path selection in the DMSR protocol. The metric takes into account the number of the neighbor nodes of the forwarding nodes, the channel busy time and the number...
Wireless backhaul has received much attention as an enabler of future broadband mobile communication systems because it can reduce deployment cost of pico-cells, an essential part of high capacity system. A high throughput with a minimum delay network is highly appreciated to sustain the increasing proliferation in multimedia transmissions. In this research, we propose a backhaul network using the...
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