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A data-centric network architecture, Named Data Networking (NDN) has been developed to meet applications' growing demands of network effciency and resilience. Currently, the deployment of NDN in real network environments requires careful system design to not only enable NDN but also support IP traffc, considering IP network has been prevalent for decades and almost all the equipments and applications...
Cache technology has emerged as a promising approach for distributed web systems to mitigate the web server's data access performance bottleneck. In this paper, we propose a decentralized load balancing architecture. The cache system takes advantage of the decentralized architecture for providing scalability and high availability. It can provide content requested by a user if it is cached in any of...
Stereo matching technique has been extensively investigated for depth map extraction, while most depth-map applications (such as 3D gaming, vehicle collision detection, etc.) adopt active scan systems to measure the distance. It is challenging to design an efficient hardware architecture of stereo matching which meets the real-time/high-resolution requirement. Moreover, external factors such as lighting...
This paper presents a new design of a ternary content addressable memory (TCAM) cell. This design exploits two emerging technology devices: a phase change memory (PCM) as storage element and a negative differential resistance (NDR) device as control element. The PCM stores a multi-value resistance to account for the ternary nature of the equality function to be performed in a TCAM. The CMOS-NDR device...
A 45GHz 64QAM system-on-chip (SoC) CMOS transmitter with digitally-assisted power amplifiers (DAPA) is presented. The SoC includes a 7M gate ASIC with 9b reconfigurable symbol mapping, 8X upsampling, 161tap pulse shape filtering, IQ imbalance correction and DAPA envelope/time estimation. The ASIC feeds two 10b IQ current-steering DACs and active IQ modulator. A unique transformer splitting up converter...
Internet traffic has been exponentially growing with the increasing demand of content dissemination. This explosive growth in traffic poses a significant challenge to the networks, especially backbones. To address the challenge, the emerging content-oriented Named Data Networking (NDN) has been proposed due to its attractive advantages, such as network load reduction, low dissemination latency and...
To maximize their efficacy, cognitive radios (CRs) need to be able to cope with the constantly changing spectrum environment, evolving spectrum access policies, and a diverse array of network application requirements. Policy-based cognitive radios address these challenges by decoupling the spectrum access policies from device-specific implementations and optimizations. These radios can invoke situation-appropriate,...
Due to the fact that existing 3.5G network cards usually select networks with the highest data rate as their priority choices, the radio resources may not be efficiently and equally utilized in a multiple network environment, even when the network with the highest rate is already congested. In this paper, we propose two dynamic resource allocation algorithms to resolve such issues assuming an HSPA...
With the rapid development of virtual reality technology, the distributed virtual reality platform is becoming more modular and more standardized. Plugin technology based on reuse of software is widely used in distributed virtual reality platform. According to the basic principles of plug-in technology, OpenSim platform which is a distributed virtual reality platform based on an open source is analyzed,...
Software development, like other engineering areas, is needed to providing a measurement mechanism for supporting and collecting the relevant data and evaluating feedbacks during the software development processes. The GQM is the most popular method for software measurement in the industry; however, there is lack of the tools supported to GQM. In this paper, we will adopt the multi-agents architecture...
According to the teaching and learning experience and problems in English Reading, this paper illustrates a set of solving project which is based on the Expert System, and a model is also built up under the guidance of the Expert System. The paper demonstrates several aspects about the general analysis and design, realization, and functional analysis of the System. This System is adopted the major...
This paper proposes a novel circuit architecture and its operation style for three-level ferroelectric random access memory (FeRAM) which can improve storage density by 1.5 times compared to traditional ITIC FeRAM under same technology. A new reference voltage generation scheme is adopted to enhance the reliability of this proposed circuit architecture. Based on the results of simulation, the function...
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