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The smooth video streaming over HTTP through 3G/4G wireless network is challenging as available bit rate in the internet changes due to sharing of network resources and time varying nature of wireless channels. The present popular technique Dynamic Adaptive Streaming over HTTP (DASH)provides solution up to some extent to stored-video, but the effective adaptive streaming of a live video remains a...
The Software Defined Network (SDN) is a new networking paradigm, which separates the control plane and data plane. In this paper, we study two efficient large flow scheduling problems using SDN. We firstly present problem definitions, then we propose two algorithms based on Minimize-Cost Maximize-Flow (MCMF) model. One is for static model and the other for dynamic model. We show how to determine the...
In this paper, we investigate the mechanism of Fast Factorized Back-projection (FFBP) algorithm by revealing the relationship between the echoed signal and the spectrum of synthetic aperture radar (SAR) image projected on different coordinate systems. Based on the spectral analysis, a modified FFBP algorithm for squint ultra-wide bandwidth (UWB) SAR imaging is presented. Comparing with the conventional...
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