Concept

Digital subscriber line

Publications associées (40)

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Rating of Routing by Redundancy Overall Need

Emin Gabrielyan

Thanks to the large buffering time of off-line streaming applications, erasure resilient Forward Error Correction (FEC) codes can improve the reliability of communication particularly well. However real-time streaming puts hard restrictions on the buffer s ...

2006

Large scale selective event dissemination

Sidath Handurukande

Event-based systems usually denote distributed infrastructures that are used to asynchronously disseminate information among geographically distant computing units. In these systems, the information sources (a.k.a. publishers) produce events and the system ...

EPFL2005

A 50 MBPS 4x4 maximum likelihood decoder for multiple-input multiple-output systems with QPSK modulation

Andreas Peter Burg

In this article we present an efficient approach for the implementation of optimum maximum likelihood decoding of QPSK modulated multiple-input-multiple-output data streams. The proposed method does not compromise optimality of the detection algorithm. Ins ...

Ieee Service Center, 445 Hoes Lane, Po Box 1331, Piscataway, Nj 08855-1331 Usa2003

Space-Time Coding for Broadband Wireless Transmission

Christina Fragouli

We present an overview of research activities on space-time coding for broadband wireless transmission performed at AT & T Shannon Laboratory over the past two years. The emphasis is on physical layer modem algorithms such as channel estimation, equalizati ...

2002

Turbo Encoder Design for Symbol Interleaved Parallel Concatenated Trellis Coded Modulation

Christina Fragouli

This paper addresses turbo-encoder design for coding with high spectral efficiency using parallel concatenated trellis-coded modulation and symbol interleaving. The turbo-encoder design involves the constituent encoder design and the interleaver design. Th ...

2001

Stable pole-zero modeling of long FIR filters with application to the MMSE-DFE

Ali H. Sayed

The problem of approximating a long FIR filter by a reduced-parameter stable pole-zero filter is addressed. We derive a computationally efficient order-recursive algorithm that achieves this task with high accuracy. Our main emphasis is on applying this al ...

IEEE1997

Virtual Trunk Simulation

One of the activities of the ACTS project EXPERT is to perform trials demonstrating the use of advancedResource Management and Routing (RMR) algorithms in ATM networks. The RMR model chosen for those trials is based on the Virtual Trunk (VT) concept. In AT ...

1997

Virtual Trunk Simulation

One of the activities of the ACTS project EXPERT is to perform trials demonstrating the use of advanced Resource Management and Routing (RM&R) algorithms in ATM networks. The RM&R model chosen for these trials is based on the Virtual Trunk (VT) concept. In ...

1997

400-MHz all-fiber phase modulators using standard telecommunications fiber

René Salathé, Hans Georg Limberger

Summary form only given. All-fiber phase modulators have recently received considerable attention because of their advantages for applications in the field of lightwave technology. In this paper, new results are presented on the characterization of all-fib ...

Opt. Soc. America1996

A high-performance cost-effective pole-zero MMSE-DFE

Ali H. Sayed

In this paper we derive a computationally efficient algorithm for accurately approximatinga long FIR filter by a reduced-parameter pole-zero filter. Our derivation successfully extends the "embedding" approach of [1,2] to the case of an unequal number of p ...

1993