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With the recent rise in cloud computing, applications are routinely accessing and interacting with data on remote resources. As data sizes become increasingly large, often combined with their locations being far from the applications, the well known impact of lower TCP throughput over large delay-bandwidth product paths becomes more significant to these applications. While myriads of solutions exist...
This paper introduces GENI Cinema (GC), a system that provides a scalable live video streaming service based on dynamic traffic steering with software defined networking (SDN) and demand driven instantiation of video relay servers in NSF GENI's distributed cloud environments. While the service can be used to relay a multitude of video content, its initial objective is to support live video streaming...
A slot-coupled stacked patch antenna operating at 35GHz with dual-polarized operations is presented in this paper. To achieve wide bandwidth and high gain at 35GHz, four parasitic patches are located above the active element. The measured results show that the frequency bandwidth of S11 less than −10dB covers 30–40GHz and the isolation between two polarization ports is higher than 20dB at the center...
In this paper, the scheduling problem of the network with limited bandwidth is considered. In order to improve the network quality of service and the quality of control simultaneously, an intelligent feedback scheduling method is proposed. The scheduler reschedules the priority, the sampling period, and the output threshold concurrently according to the control authority of each node, which is calculated...
In this paper, a frame of guided weapon with network has been proposed, the pitching loop, yawing loop and rolling loop share the network resource by time-division. To maximum the overall performance of the three control loops, an intelligent feedback scheduler is designed to allocate available network resource dynamically according to the limited network bandwidth and variable workload. The scheduler...
This paper proposes a multi-channel MAC scheme for Vehicular Ad Hoc Networks (VANETs), which dynamically adjusts the intervals of Control Channel (CCH) and Service Channels (SCHs). Markov modeling is conducted to optimize the intervals based on the traffic condition. The scheme also introduces a multi-channel coordination mechanism to provide the contention-free access in SCHs. Theoretical analysis...
In this paper we propose to extend the well known spherical harmonic descriptor (SHD) by adding an additional Fourier-like radial expansion to represent volumetric data. Having created an orthonormal basis on the ball with all the gentle properties known from the spherical harmonics theory and Fourier theory, we are able to compute efficiently a multi-scale representation of 3D objects that leads...
On-demand broadcast is an efficient wireless data dissemination method for mobile services.As the rapid growth of the mobile application,there is an increasing need for system to support large data dissemination.This paper investigates wireless on-demand broadcast algorithms.We propose a new scheduling algorithm called FMT(Fluent Media Transfer) which takes the flux of program,the program size,request...
WiMAX is the latest globally accepted wireless broadband access standard, which is also a valuable illuminator for passive radar. This paper analyzes the ambiguity function of WiMAX signal to evaluate its suitability as radar waveform. Simulation and experimental results demonstrate that WiMAX signal has a `bed of nails' type ambiguity function, whose properties depend on its frame structure, length...
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