Amir amirkhany thesis

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Amir amirkhany thesis

What Are Case Studies

Show Context Citation Context There are a variety of ways to achieve the synchronization, which strongly depends on the modulation, channel characteristics, and system requirement [5].

The simplest way to achieve the synchroniza In this paper we consider the transmission of a discrete data sequence via a communication channel that is subject to additive noise with a known upper bound on its magnitude but otherwise completely unre-stricted behavior.

Our previous work has characterized general neces-sary and sufficient cond Our previous work has characterized general neces-sary and sufficient conditions that allow perfect reconstruction of any discrete data sequence perhaps with some delay under all possible re-alizations of channel noise.

In this work, we focus our attention to cases where these necessary and sufficient conditions do not necessarily hold and to the subsequent problem of determining all discrete data sequences that are compatible with a given received sequence.

In particular, we provide a general recursive algorithm that can be used at the receiving end to perfectly reconstruct the transmitted sequence when the perfect reconstruction conditions hold or to obtain all valid sequences that are consistent with the received sequence when the perfect reconstruction condition is violated.

This thesis explores the benefit of channel coding for high-speed backplane or chipto-chip interconnects, referred to as the high-speed links. Although both powerconstrained and bandwidth-limited, the high-speed links need to support data rates in the Gbps range at low error pro Although both powerconstrained and bandwidth-limited, the Amir amirkhany thesis links need to support data rates in the Gbps range at low error probabilities.

Modeling the high-speed link as a communication system with noise and intersymbol interference ISIthis work identifies three operating regimes based on the underlying dominant error mechanisms. The resulting framework is used to identify the conditions under which Amir amirkhany thesis error control codes perform optimally, incur an impractically large overhead, or provide the optimal performance in the form of a single parity check code.

For the regime where the standard error control codes are impractical, this thesis introduces lowcomplexity by by Maxine Lee, Vladimir Stojanovic, Maxine Lee" Throughput and energy-efficiency of high-speed chip-to-chip interconnects present critical bot-tlenecks in a whole range of important applications, from processor-memory interfaces, to network routers.

These links currently rely solely on complex equalization techniques to maintain the bit error rat The work described in the thesis shows that it may be possible to use coding techniques to share the burden of combating errors, while increasing the throughput of the link or improving its energy-efficiency.

Since codes here attempt to alleviate the impact of partially correlated sources of error like reflections interference, crosstalk and jitteran experimental setup was created for characterization of link channel properties and per- Show Context Citation Context The performance of the transceiver in [3] clearly falls short of this mark.

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Finally, to illustrate the necessity of imp Abstract — Application of Discrete Multi-tone DMT signaling to high-speed backplane interconnects requires major modifications to the well-known analysis methods applied to wireline communication systems. Tight power budgets in backplane links impose severe constraints on DMT block size and use of Tight power budgets in backplane links impose severe constraints on DMT block size and use of channel shortening filters in the system.

Consequently, maximum throughput is achieved in a DMT system that is residual interference limited and water-filling is not applicable in its original form. In this paper, the DMT system is cast as a Second Order Conic SOC problem with peak transmit power as the constraint and optimum integer bit-loading and power allocation are achieved through a novel incremental integer bit-loading algorithm.

by Amir Amirkhany, Vladimir Stojanović, Mark A. Horowitz, Abstract—A Multi-tone architecture is proposed for high-speed backplane serial links. To limit complexity, the links use analog multi-tone rather than the more modern DMT. Jaeha Kim, Eric Kim, Dinesh Patil, Amir Amirkhany, Xiling Shen, Sam Palermo, Ron Ho, and Jim Weaver for their friendship and many enjoyable discussions and collaborations. Jaeha Kim, Eric Kim, Dinesh Patil, Amir Amirkhany, Xiling Shen, Sam Palermo, Ron Ho, and Jim Weaver for their friendship and many enjoyable discussions and collaborations.

The results indicate that DMT has the potential to achieve Gbps over typical backplane channels and system requirements in terms of FFT block size and prefix length are obtained.

Increasing demands in network speeds are placing a large burden on the energy efficiency of high-speed links and render the benefi Increasing demands in network speeds are placing a large burden on the energy efficiency of high-speed links and render the benefit of channel coding for these systems a timely subject.

The low error rates of interest and the presence of residual intersymbol interference ISI caused by hardware constraints impede the analysis and simulation of coded high-speed links.

Focusing on the residual ISI and combined noise as the dominant error mechanisms, this paper analyzes error correlation through concepts of error region, channel signature, and correlation distance. This framework provides a deeper insight into joint error behaviors in high-speed links, extends the range of statistical simulation for coded high-speed links, and provides a case against the use of biased Monte Carlo methods in this setting.

Finally, based on a hardware test bed, the performance of standard binary forward error correction and error detection schemes is evaluated, from which recommendations on coding for high-speed links are derived.

Index Terms—Communication systems, integrated circuit interconnections, intersymbol interference ISI. In this paper we introduce optimization-based framework for link design-space exploration, con-necting the link transmission quality and top-level filter settings with circuit power, sizing and biasing.

We derive a special analytical discrete time representation that avoids the size explosion of the symbolic problem description improving the parsing and solver time by orders of magnitude and making this joint optimization possible in real-time. This robust and accurate problem formulation is derived in signomial form and is compatible with existing optimization approaches to circuit sizing.

We demonstrate this optimization framework on a link design-space exploration example, investigating trade-offs between the transmit pre-emphasis and linear receiver equalizer and their impact on overall link power vs. In that scenario, dmin[k] can be expressed as the sample under worst case destructive interference [15] at the slicer input for a given sampling phase k, and a subset of N most significant symbol-spMai, Jaeha Kim, Amir Amirkhany, Xiling Shen, Ron Ho, Jim Weaver, Bennett Wilburn, Francois Labonte, and Alex Solomatnikov.

Also, from Prof. Miller’s Group, Salman Latif, Noah Helman, and Henry Chin deserve special recognition. I wish to thank the National Science Foundation, MARCO IFC, and Texas Instruments for their financial support.

Amir amirkhany thesis

This thesis covers the design, analysis and implementation of a multi-carrier signaling method, called Analog Multi-Tone (AMT), specifically designed to take advantage of . This thesis presents a system-level link design approach, tightly integrating the noise and channel properties with communication algorithms and circuit- level power and speed constraints.

We need to repeat the thesis to publication in peer-reviewed journals will help you avoid positioning thesis amirkhany amir the writer see for example it is possible to create and strategize.

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Amir amirkhany thesis

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