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Tag Archive: Ns2 simulator Projects

A clamped feedback based digital versatile optimal bidirectional battery charger for HEV/PHEV

Due to the increasing awareness and adoption of eco-friendly vehicle technologies, hybrid electric vehicle (HEV) and plug-in hybrid electric vehicle (PHEV) technologies have become one of the most interesting areas of research because of the reduced use of fuel and green house emission. Battery chargers are one of the most important parts in developing the […]

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A-Duplex: Medium Access Control for Efficient Coexistence between Full Duplex and Half Duplex Communications

As full duplex wireless communication evolves into a practical technique, it will be built into communication nodes in many application scenarios. However, it is difficult to do so for legacy communication nodes. Thus, full duplex communication nodes will coexist with half duplex communication nodes in the same application environment. In this paper, a wireless local […]

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Security-Reliability Trade-off Analysis of Multi-Relay Aided Decode-and-Forward Cooperation Systems

We consider a cooperative wireless network comprised of a source, a destination and multiple relays operating in the presence of an eavesdropper, which attempts to tap the source-destination transmission. We propose multi-relay selection scheme for protecting the source against eavesdropping. More specifically, multi-relay selection allows multiple relays to simultaneously forward the source’s transmission to the destination, differing […]

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Raman amplification: An enabling technology for high-capacity, long-haul transmission

Raman increases OSNR without much penalty to allow longer reach (skipping Regens) and/or longer spans (or skipped sites) for all fiber types and links. Modular Raman implementation allows customized designs. Higher power Raman modules may be needed for high Aeff fiber types. Raman cost should be viewed at both beginning & end of life. Raman […]

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2W-FD: A Failure Detector Algorithm with QoS

Failure detection plays a central role in the engineering of distributed systems. Furthermore, many applications have timing constraints and require failure detectors that provide quality of service (QoS) with some quantitative timeliness guarantees. Therefore, they need failure detectors that are fast and accurate. We introduce the Two-Windows Failure Detector (2W-FD), an algorithm able to react […]

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The Effect of Broadband Matching in Simultaneous Information and Power Transfer

This paper presents the effect of broadband matching in simultaneous information and power transfer along with an implementation. The narrowband characteristic of antennas has limited the applications of simultaneous information and power transfer. The performance improvements in terms of channel capacity and power delivery under broadband matching have been demonstrated. Electromagnetic simulation and multiobjective optimization […]

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The Relationship between Online Engagement and Users’ Perceived Benefits: Exploring the Differences among Rural and Urban Internet Users

While the provision of infrastructure has largely been successful in South Korea, the divergent uses after getting access to the networks have resulted in a new type of digital exclusion. Among the many factors that lead to a longer term divide among those who benefit from the technologies and those who do not, this study examined the […]

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Deduping the Internet: An email case study

Much of the traffic that traverses the Internet each day is redundant. That is, some or all of the data content has been sent previously. From a technical viewpoint, this represents a waste of resources, in terms of network bandwidth, storage, and energy efficiency. This paper presents an initial feasibility study to assess the potential of data […]

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Runtime and Architecture Support for Efficient Data Exchange in Multi-Accelerator Applications

Heterogeneous parallel computing applications often process large data sets that require multiple GPUs to jointly meet their needs for physical memory capacity and compute throughput. However, the lack of high-level abstractions in previous heterogeneous parallel programming models force programmers to resort to multiple code versions, complex data copy steps and synchronization schemes when exchanging data […]

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Gap influence and mode converter design for non-destructive complex permittivity measurement using circular TE01-mode open-end waveguide

This paper proposes a non-destructive complex permittivity measurement method using circular TE01mode. First, we discuss on the influence of gap by comparing conventional coaxial probe method and circular TE01 mode method that we propose. They are quantitatively compared based on the analysis with the help of EM-field simulator. It is shown that the proposed method is […]

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