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IEEE ComSoc White Papers

Learn about latest technologies and products through expert whitepapers available on our website. All the whitepapers are provided by our sponsors and are free to download.

White Papers
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Watch the DesignCon 2017 Keysight Education Forum (KEF) sessions from the convenience of your desk. Get complimentary access to the materials that made KEF a huge success.  View the footage and presentation slides from all 8 workshops including “PCI Express: techniques for 16 Gbit deployment”, “Power and signal integrity insight for DDR4/LPDDR systems”, “How to characterize 400G/PAM-4 transmitter” and more.

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Everywhere you look today, 5G is at the center of conversations about exciting new technology. Recent announcements from Mobile World Congress 2017 in late February indicate that 5G is already here. The truth is that 5G isn’t here yet, but we are getting closer. The past year has been busy in all aspects of the communications community, from the work on the standardization process to updates from regulatory bodies to our understanding of the channel for new proposed millimeter wave (mmWave) frequencies to the new technology under development that will turn 5G into a commercial reality. Last year, I wrote a paper called “mmWave: The Battle of the Bands” to provide an overview of the technologies being proposed for mmWave frequencies. In this paper, I’m building on that information by examining mmWave for communications and presenting an update to the question on everyone’s mind: What is 5G and when will it be here?

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With the IoT space rapidly growing into diverse areas like wearables, smart meters, fleet management, herd management etc., battery life is a key factor that can make or break your device and the solution you offer. Having a predictable battery life is imperative in ensuring a successful solution. This application note covers the latest additions in wireless technologies that enhance the battery as well as, effective ways to test and analyze the battery life consumption.

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Download this interactive eBook to get ‘6 Essential Tips’ to help you do faster testing and avoid mistakes that negatively impact your results. Oscilloscope testing can be tricky, and you have important decisions to make when setting up your measurements. See how you can do better testing, have more confidence in your results, and get more out of your oscilloscope investment.

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5G designs that use wide-bandwidth digital modulation require new test technologies. Our latest 5G whitepaper presents a testbed for generating and analyzing millimeter-wave signals with 8 GHz bandwidth. We used it to generate V- and E-band signals and apply digital pre-distortion (DPD) algorithms, achieving impressive improvements in ACPR and EVM.

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Computer-based simulations, although useful in generating nominal performance benchmarks of wireless communication systems, often make inaccurate assumptions of various system model components that largely limit the ability to predict how an actual system will behave in practice. Therefore, functional prototypes that operate over real-world wireless channel conditions in real time are essential to determine the feasibility of new technologies and the extent to which their promised gains in performance can be achieved. Although necessary, prototyping has traditionally presented challenges that stem from the many complexities associated with the various layers in the network communication stack including the PHY, MAC, and network layers. To address the challenges of prototyping real-time wireless communication systems, National Instruments offers a software defined radio (SDR) prototyping systems with capabilities that satisfy a variety of hardware and software requirements. This document presents the NI MAC/PHY prototyping system as an example that illustrates how a third-party upper-layer protocol stack or MAC can be incorporated with the LTE physical-layer implementation to facilitate real-time, over-the-air transmission.

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The powerful capabilities of USB Type-C have captured the attention of protocol standards like Thunderbolt, DisplayPort and MHL which will be supported in the Type-C connector along with USB. USB Type-C’s flexible power and data transmission features enable the support of the alternate modes. Learn more about the Alt-mode test challenges and Keysight’s solutions. Download now.

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5G is extensively discussed in the wireless industry today. A lot of research and pre-development is being conducted worldwide, including an analysis of the waveforms and access principles that are the basis for current LTE and LTE-Advanced networks.

In this paper, we discuss potential 5G waveform candidates, list their advantages and disadvantages and compare them to Orthogonal Frequency Division Multiplexing (OFDM), which is used extensively in LTE/LTE-Advanced.

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With the rapid expansion of wireless communications, the need for robust networks relatively free of interference continues to grow. Capacity can be degraded by the presence of illegal or unlicensed signals that interfere with legitimate transmissions.

Our 8 page application note provides an overview of Anritsu’s Remote Spectrum Monitoring Solutions designed to mitigate interference problems and to identify illegal or unlicensed signal activity. 

The application note covers the following information and more:
  • Why use remote spectrum monitors?
  • Categories of spectrum monitoring models
  • Characteristics of effective remote spectrum monitoring solutions
  • Applications of a remote spectrum monitoring system
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This white paper is Part Two of the MAC/PHY prototyping platform series. The next generation wireless communication networks, or 5G, will need to evolve to overcome the limits of current systems by serving a number of novel use cases with very diverse requirements. With many unknowns, researchers recognize the need to go beyond the computer-based simulation to test the system in the real-world scenario. For such experimental studies, the National Instruments (NI) LTE MAC/PHY prototyping system offers a flexible hardware and software reference architecture complete with a real-time upper layer stack and PHY layer that enables wireless researchers to rapidly prototype networks of LTE devices that communicate over real-world wireless channels. In this white paper, we explain the technical details of the platform, each layer of the communication stack and how to set it up with an open source simulation tool such as Network Simulator 3, NS-3. In the last part of the series, Part Three, we will show the system components to explain what is needed to build such flexible prototyping platform.

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