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This paper presents an Adaptive Greedy-compass Energy-aware Multipath protocol (AGEM), a novel routing protocol for wireless multimedia sensors networks (WMSNs). AGEM uses sensors node positions to make packet forwarding decisions. These decisions are made online, at each forwarding node, in such a way that there is no need for global network topology knowledge and maintenance. AGEM routing protocol...
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...
Because sensor nodes operate on power limited batteries, sensor functionalities have to be designed carefully. In particular, designing energy-efficient packet forwarding is important to maximize the lifetime of the network and to minimize the power usage at each node. This paper presents a geographic energy-aware multipath stream-based (GEAMS) routing protocol for WMSNs. GEAMS routing decisions are...
Summary form only given. ADVISE special session aims to addresses an important issues related to Quality of Service (QoS) adaptation for the delivery of multimedia services over next generation wired/wireless networks. This session covers future multimedia communication systems that can be part of an end-to-end system by including support of the userpsilas needs and preferences and taking into consideration...
Thanks to its cost-effectiveness and wide deployment, the 802.11 WLAN is considered today as the de-facto wireless access network for the last mile connection. In this regards, QoS provisioning in 802.11 WLAN for multimedia services is becoming a main objective that should be enforced to enable reliable commercial offers. To reach this goal, the different mechanisms proposed by 802.11 standards, including...
This paper describes the issues related to IP multicast support in satellites networks. The IGMP multicast membership management protocol is considered as inappropriate for multicast group management over satellite network. In fact, IGMP leads to flooding, latency and scalability issues when used over asymmetric satellite networks. Thus, we propose a new architecture for multicast services provisioning...
The actual trend in the IT (information technology) market is to create a new environment that will enable end-users to access a variety of services (TV/Radio programs, Internet, Multimedia applications, Games ...), wherever they are, whenever they want and whatever terminal they use. No existing solution exists that allows the common user to have access, instantly and in real time, to his desired...
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