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In this demo, we present three lean methods for real-time adaptation of live MPEG-2 video to limited and varying network bandwidth. Our methods use real-time resource management techniques to determine available resources and steer adaptation decisions. Then, the modified stream consists only of frames with a high likelyhood of being processed completely, the resulting stream will only use resources...
In this paper, we consider an uplink multiservice networks employing Orthogonal Frequency Division Multiple Access (OFDMA) for WiMAX networks. Since the OFDMA physical resource available for scheduling is frame by frame, the uplink scheduler located at base station (BS) must efficiently allocate available resources to the subscriber stations (SSs) in response to constant or bursty data traffic on...
In order to ensure the quality of broadband service in cellular networks, bandwidth resources are required more and more. But the wireless bandwidth resources in a cell are limited and fixed. A QoS-adaptive bandwidth allocation scheme based on measurement report real-time analysis is presented in the paper. It makes use of the measurement report frames and normalized QoS level to maximize the weight...
Recent advances in modern neurocomputing have shown the utmost necessity of wireless communication systems that allow real-time (RT) monitoring of neural signals meeting several requirements such as source compression and high fidelity of the received signal. Neural recordings require multielectrode probes with up to hundreds of electrodes and transmission of signals wirelessly over a limited bandwidth...
A serious bottleneck in real-time multimedia applications is the non-availability of required network bandwidth. While much research has been done on multimedia compression and network resource optimization, multimedia delivery is still a big concern especially for scarce resource networks. The virtues of network aware video coding and application of domain specific compression techniques have not...
We propose service parameters, architectures to provide them, pricing policies and a heuristic route-reservation algorithm for a network providing bandwidth reservation services. Bandwidth reservation services allow users to choose or assign service parameters with which users' requirements are satisfied. We classify the parameters by bandwidth reservation contents (ex. video conference, streaming)...
Multihop relay networks (MR) use relay stations (RS) to extend or enhance the coverage of a base station (BS) in a cellular network. The base station is attached to a wired backhaul. Relay stations use wireless transmission to connect to the base station and to the mobile stations (MS), while direct BS-MS connection is also possible. Low cost relay technologies are recently proposed for OFDM based...
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