Articles

August 1, 2020

A system design for elastically scaling transaction processing engines in virtualized servers

Online Transaction Processing (OLTP) deployments are migrating from on-premise to cloud settings in order to exploit the elasticity of cloud infrastructure which allows them to adapt to workload variations. However, cloud adaptation comes at the cost of redesigning the engine,...

By Angelos-Christos G. Anadiotis, Raja Appuswamy, Anastasia Ailamaki, Ilan Bronshtein, Hillel Avni, David Dominguez-Sal, Shay Goikhman, Eliezer Levy

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June 19, 2020

Neural Network MIMO Detection for Coded Wireless Communication with Impairments

In this paper, a neural network based Multiple-Input-Multiple-Output (MIMO) algorithm is presented. The algorithm is specifically designed to be integrated in a coded MIMO-OFDM system, and is based upon projected gradient descent iterations.

By Omer Sholev, Haim H. Permuter, Eilam Ben-Dror, Wenliang Liang

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May 26, 2020

Analysis of Transmit and Receive Implementation Losses in Full Duplex Wireless Transceivers

This work studies transmit (TX) and receive (RX) power losses in single antenna in-band full duplex transceiver architectures employing passive self-interference cancellation (SIC) filters. Three different RF front-end (RFFE) approaches to realize passive primary TX-RX isolation - a circulator, an...

By Dror Regev, Nimrod Ginzberg, Emanuel Cohen

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March 9, 2020

Orthogonal Directional Transforms Using Discrete Directional Laplacian Eigen Solutions for Beyond HEVC Intra Coding

We introduce new transforms for efficient compression of image blocks with directional preferences. Each transform, which is an orthogonal basis for a specific direction, is constructed from an eigen-decomposition of a discrete directional Laplacian system matrix.

By Itsik Dvir, Dror Irony, David Drezner, Ady Ecker, Amiram Allouche, Natan Peterfreund

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December 10, 2019

Transmit-Receive Cross-modulation Distortion Analysis in Full Duplex Quadrature Balanced Wireless Transceivers

This paper presents an analysis of the nonlinear interaction between the transmit (TX) and receive (RX) signals in a quadrature balanced full duplex wireless transceiver system. A nonlinear analysis is conducted to describe the inband third-order distortion experienced by the...

By Nimrod Ginzberg, Dror Regev, Genadiy Tsodik, Shimi Shilo, Doron Ezri, Emanuel Cohen

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November 13, 2019

A Full-Duplex Quadrature Balanced RF Front End With Digital Pre-PA Self-Interference Cancellation

This article presents a quadrature balanced radio-frequency (RF) front-end transmitter (TX) architecture assisted by a digital self-interference cancellation (SIC) algorithm for simultaneous transmission and reception in next-generation full-duplex radios.

By Nimrod Ginzberg, Dror Regev, Genadiy Tsodik, Shimi Shilo, Doron Ezri, Emanuel Cohen

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November 4, 2019

Pre-PA Delay-Line Based FIR Filter for Self-Interference Cancellation in Full Duplex Wireless Systems

In this paper we propose a pre-PA self-interference (SIC) cancellation FIR filter architecture implemented in a quadrature balanced PAs (QBPA) transmitter (TX) for full duplex wireless applications. Pre-PA SIC filter allows for flexible and efficient equalization of the cancellation signal...

By Nimrod Ginzberg, Dror Regev, Emanuel Cohen

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August 26, 2019

A 5GHz to 6GHz CMOS transmitter for full-duplex wireless with wideband digital cancellation

This paper presents a quadrature balanced transmitter, assisted by a digital equalization and predistortion self-interference cancellation technique for Full-Duplex wireless applications. An analysis of design trade-offs between low receiver (Rx) loss and high transmitter (Tx) efficiency is laid out and...

By Nimrod Ginzberg, Dror Regev, Genadiy Tsodik, Shimi Shilo, Doron Ezri, Emanuel Cohen

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July 31, 2019

AM-PM: Efficient Network Telemetry using Alternate Marking

The fast evolution of high-speed networks has raised the need for accurate and scalable network measurement. Thus, in the last few years several new methods to collect network state information have been pursued by network operators and vendors across the...

By Tal Mizrahi, Gidi Navon, Giuseppe Fioccola, Mauro Cociglio, Mach Chen, Greg Mirsky

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