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- Ram Zamir, Yuval Kochman, Uri Erez
- 2006 IEEE International Symposium on Information…
- 2006

The "water-filling" solution for the quadratic rate-distortion function of a stationary Gaussian source is given in terms of its power spectrum. This formula naturally lends itself to a frequency domain "test-channel" realization. We provide an alternative time-domain realization for the rate-distortion function, based on linear prediction. This solution… (More)

It furthers the University's mission by disseminating knowledge in the pursuit of education, learning and research at the highest international levels of excellence. A catalogue record for this publication is available from the British Library Library of Congress Cataloguing in Publication data Zamir, Ram. Lattice coding for signals and networks : a… (More)

- Da Wang, Amir Ingber, Yuval Kochman
- 2011 49th Annual Allerton Conference on…
- 2011

In this work we investigate the behavior of the distortion threshold that can be guaranteed in joint source-channel coding, to within a prescribed excess-distortion probability. We show that the gap between this threshold and the optimal average distortion is governed by a constant that we call the joint source-channel dispersion. This constant can be… (More)

- Yuval Kochman, Ram Zamir
- IEEE Trans. Information Theory
- 2009

The combination of source coding with decoder side-information (Wyner-Ziv problem) and channel coding with encoder side-information (Gel'fand-Pinsker problem) can be optimally solved using the separation principle. In this work we show an alternative scheme for the quadratic-Gaussian case, which merges source and channel coding. This scheme achieves the… (More)

- Amir Ingber, Yuval Kochman
- 2011 Data Compression Conference
- 2011

In this work we investigate the behavior of the minimal rate needed in order to guarantee a given probability that the distortion exceeds a prescribed threshold, at some fixed finite quantization block length. We show that the excess coding rate above the rate-distortion function is inversely proportional (to the first order) to the square root of the block… (More)

- Yuval Kochman, Ram Zamir
- IEEE Transactions on Information Theory
- 2006

Analog (uncoded) transmission provides a simple and robust scheme for communicating a Gaussian source over a Gaussian channel under the mean-squared-error (MSE) distortion measure. Unfortunately, its performance is usually inferior to the all-digital, separation-based source-channel coding solution, which requires exact knowledge of the channel at the… (More)

- Yuval Kochman, Anatoly Khina, Uri Erez, Ram Zamir
- 2008 IEEE International Symposium on Information…
- 2008

The Gaussian parallel relay network problem consists of transmitting a message from a single source node to a single destination node, through a layer of parallel relay nodes. The source is connected to the relays by a Gaussian broadcast channel, while the relays are connected to the destination by a Gaussian multiple access channel. When the channels are… (More)

- R. Zamir, Y. Kochman, U. Erez
- IEEE Transactions on Information Theory
- 2008

The ldquowater-fillingrdquo solution for the quadratic rate-distortion function of a stationary Gaussian source is given in terms of its power spectrum. This formula naturally lends itself to a frequency domain ldquotest-channelrdquo realization. We provide an alternative time-domain realization for the rate-distortion function, based on linear prediction.… (More)

- James D. Krieger, Yuval Kochman, Gregory W. Wornell
- 2013 IEEE International Conference on Acoustics…
- 2013

An efficient sparse antenna array architecture is developed for coherent imaging of sparse but otherwise unknown scenes. In this architecture, the array elements form a periodic nonuniform pattern. Using analysis that explicitly takes into account the presence of noise, we develop an efficient pattern design procedure based on co-arrays, describe an… (More)

- Huan Yao, Yuval Kochman, Gregory W. Wornell
- IEEE Journal on Selected Areas in Communications
- 2011

—We consider streaming over a blockage channel with long feedback delay, as arises in, e.g., real-time satellite communication from a common the move (COTM) terminal. For this problem, we introduce a definition of delay that captures the real-time nature of the problem, which we show grows at least as fast as O(log(k)) for memoryless channels, where k… (More)