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The sensor network consist of multi-purpose of node in a scarred networks area. The modern motes that have multiple sensor board on a single radio board, which have different type of transmission rate, required bandwidth, packet loss, delay demands etc. In this paper we proposed Heterogeneous Congestion Control Protocol(HCCP), which controls the efficient rate for heterogeneous traffic. This protocol...
The present work focuses on emulation and validation of protocol stacks for MANETs (mobile ad-hoc networks) that must support multimedia applications in a tactical environment. We considered a network consisting of some tens of mobile nodes, with randomly variable speeds in the order of some tens of km/h. Nodes are deployed on a scenario of a few km2 and have a radio range of some hundreds of meters...
This paper describes the identification of potential problems with ad hoc routing protocol that contribute to the overall performance. Another major factor that contributes to routing protocol performance is when wireless nodes move out of coverage area of the other nodes and thus lose connection, or the opposite, where other wireless nodes join the network while on the move and require a dynamic...
The provision of innovating multimedia services is a high priority for service providers. Due to the the high traffic volume characteristics of multimedia content, decentralised services are a desired solution for multimedia scenarios. Based on the ongoing work of the IETF P2PSIP WG this paper defines a simple way to interconnect different domains using on peer-to-peer technology. The objective is...
As the growth of multimedia communications involving digital audio and video, it is increasingly important for the MANET (mobile ad hoc network) routing protocols to simultaneously support both real-time and non-real-time traffic. MANET energy management should offer this support because devices are equipped with limited battery power. To achieve this end, we revise the ad hoc on-demand distance vector...
With the increase of multimedia traffic over the past few years and traffic differentiation introduced by IEEE 802.11e, nodes with delay-sensitive multimedia traffic tend to be busy for long periods, thus exacerbating the congestion problem in mobile ad hoc networks (MANETs). Although most of the existing routing protocols are based on the shortest path algorithm, some other metrics like load and...
The multimedia services over the Internet rapid development require QoS management solutions to be implemented in the actual networks. The Internet traffic is now mostly best effort. Additional QoS control mechanisms need to be defined for data networks to be able to offer high quality multimedia services like video on demand or IPTV. Such mechanisms are QoS routing, resource reservation, admission...
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