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It is commonly acknowledged that most of the output signals of digital receiver front-end are noisy and cannot be directly delivered to post-processing subject to the working condition and the limitations of devices. This study presents an improved singular value decomposition-based de-noising algorithm by the adoption of time-domain constrained optimisation. The improved algorithm contains a filter...
This study investigates the framework of associating multiple-input–multiple-output (MIMO) beamforming with secure code to achieve unconditional secure communications in the wireless passive eavesdropping environment. The schemes are based on a two-step method under Wyner's wiretap channel model. First, with MIMO transmit beamforming, one can utilise the spatial degree of freedom to cripple eavesdroppers’...
This paper proposes a simple, application-level, and platform-independent mechanism which provides seamless media streaming and playing services in a home network. Prototype implementation achieves the software applications which can perform fast TCP re-connections and pre-fetch media segments, thus sustaining playback continuity against users' movements in a ubiquitous home network environment.
This paper proposes a secure mobile content delivery architecture in an integrated, hybrid network environment. Its design comprises device discovery, asynchronous content delivery, secure access control and virtual file system with dynamic reference mapping mechanisms, which are able to alleviate several inherent limitations in wireless and mobile networks. It thus enables mobile handheld devices...
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