Concept

Enhanced Data rates for GSM Evolution

Related publications (111)

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On the baseband compensation of IQ imbalances in OFDM systems

Ali H. Sayed

OFDM is a widely recognized and standardized modulation scheme for future high bit rate communications. Implementation of OFDM-based systems suffers from inphase-quadrature phase (IQ) imbalances in the front-end analog processing. The IQ imbalances can sev ...

2004

Power Control is Not Required for Wireless Networks in the Linear Regime

Jean-Yves Le Boudec

We consider the design of optimal strategies for joint power adaptation, rate adaptation and scheduling in a multi-hop wireless network. Most existing strategies control either power and scheduling, or rates and scheduling, but not the three together as we ...

2004

Implicitly-multithreaded processors

Babak Falsafi

This paper proposes the Implicitly-MultiThreaded (IMT) architecture to execute compiler-specified speculative threads on to a modified Simultaneous Multithreading pipeline. IMT reduces hardware complexity by relying on the compiler to select suitable threa ...

2003

Robust wireless location over fading channels

Ali H. Sayed

This paper develops an estimation algorithm for the time and amplitude of arrival of a known transmitted sequence over a single-path fading channel. The algorithm is optimized to enhance robustness to fast channel fading and low signal-to-noise ratio (SNR) ...

IEEE2003

Taxys = Esterel + Kronos: A tool for verifying real-time properties of embedded systems

Joseph Sifakis

The goal of TAXYS is to provide a framework for developing real-time embedded code and verifying its correct behavior with respect to quantitative timing requirements. To achieve so, TAXYS connects France Telecom's ESTEREL compiler SAXO-RT with VERIMAG's m ...

2001

Minimality for puncturing convolutional codes

Christina Fragouli

This paper investigates encoders optimization for the Hamming weight after periodic puncturing, and discusses minimality issues that may affect the performance of the punctured encoders. Periodically puncturing a minimal encoder produces a higher rate enco ...

2001

Mobile Ad-Hoc Networks

Ad-hoc networks are a key in the evolution of wireless networks. Ad-hoc networks are typically composed of equal nodes, which communicate over wireless links without any central control. Ad-hoc wireless networks inherit the traditional problems of wireless ...

2001

Rate enhancing and rate retarding effects of methoxy substituents on arene metalation

Competition expts. have been performed to det. the rates, relative to benzene, with which anisole, the three dimethoxybenzenes and the three trimethoxybenzenes are deprotonated by sec-butyllithium. Only the first substituent (anisole relative to benzene) h ...

1999

Speaker Verification in the Telephone Network : Research Activities in the CAVE Project

This paper summarizes the main results from the Speaker Verification (SV) research pursued so far in the CAVE project. Different state-of-the art SV algorithms were implemented in a common HMM framework and compared on two databases : YOHO (office environm ...

1997

Fractal Structures as Least Energy Patterns - the Case of River Networks

Andrea Rinaldo

Natural drainage networks, like river basins, exhibit fractal and multifractal properties. This work shows that these properties evolve from arbitrary initial conditions by minimizing the local and global rates of energy expenditure in the system. This sug ...

1992