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The Bell Labs Security Framework: Making the Case for End-to-End Wi-Fi Security

whitepaper Now, a decade after WLAN technology first became generally available, they have exactly that - the Bell Labs Security Framework, which facilitates secure network design and comprehensive end-to-end security analysis.

Tags: wireless lan, framework, wlan, fi

[10 Apr 2008]

Photos of the month - January 2008

Photo This shows the three Bell Labs scientists who invented the transistor: John Bardeen, Walter Brattain and William Shockley. Picture credit: Corinne Schulze/CNET Networks silicon.com took a trip to Heidelberg in Germany for a behind the scenes look...

Tags: speech, picture, credit, history

[30 Jan 2008]

Photos: Modern computing balancing on the head of a pin?

Photo The transistor was invented by Bell Labs scientists John Bardeen, Walter Brattain and William Shockley to replace the vacuum tube. They don't make them like this anymore - silicon.com casts an eye back over the ever-shrinking transistor, the...

Tags: transistor, form, credit, corporation

[29 Jan 2008]

Scientists perfecting picture passwords

News The researchers - Yan, with Phd student Paul Dunphy - took as their starting point the Draw a Secret Scheme (DAS), initially developed by researchers from AT&T Labs, Bell Labs and New York University.

Tags: security, pin, passwords, words

[05 Nov 2007]

Linux Server Hacks: Piece Together Data From the Lost+Found

whitepaper The fsck utility, created by Ted Kowalski and others at Bell Labs for ancient versions of Unix, removed much of the black magic from checking and correcting the consistency of Unix filesystems. No one wept many tears for the passing of fsck's...

Tags: unix, unix, filesystem, bell labs

[24 Oct 2007]

Approaching MIMO-OFDM Capacity With Closed-Loop V-BLAST

whitepaper This paper presents a closed-loop extension of the Vertical Bell Labs Layered Space-Time (V-BLAST) architecture for which the transmit power and rate assignments for each transmit antenna at different OFDM tones are optimized at the receiver and...

Tags: wireless lan, ofdm, rate, channel

[11 Apr 2007]

Approaching MIMO-OFDM Capacity With Per-Antenna Power and Rate Feedback

whitepaper Based on the well-known Vertical Bell Labs Layered Space-Time (V-BLAST) architecture that employs independent encoding for each transmit antenna ("Horizontal encoding") and successive decoding at the receiver, this paper presents a per-antenna...

Tags: wireless lan, transmission, channel, rate

[11 Apr 2007]

Shock: Microsoft hit with $1.5bn patent ruling

News Fraunhofer, which helped develop the MP3 compression technology along with Lucent's Bell Labs, has licensed its intellectual property to companies that want to use the audio format in their products. Leibnitz earlier represented Dolby Labs in a...

Tags: alcatel-lucent, patent, mp3, microsoft

[23 Feb 2007]

Start-ups cash in on 'exploding' battery recalls

News She then went on to Bell Labs, and also served as a partner in the energy practice of consulting firm Arthur Little. Lithium ion batteries have been the de facto standard for powering notebooks and consumer electronics gear for years.

Tags: batteries, laptop, dell

[20 Dec 2006]

Design Tools for Transparent Optical Networks

whitepaper This paper discusses Bell Labs-developed software tools that help design wavelength-switched optical networks. Optical technology promises to revolutionize data networking by providing enormous bandwidth for data transport at minimal cost.

Tags: optical networking, optical, transparency, wavelength

[12 Dec 2006]

Dynamic Optimization in Future Cellular Networks

whitepaper Bell Labs is pursuing efforts to realize such algorithms with research on near-term approaches that benefit present third-Generation (3G) systems and the development of control features for future networks that perform dynamic parameter adjustment...

Tags: mobile - wireless communications, algorithms, traffic, methodology

[12 Dec 2006]

MIMO-OFDM With Code-Division Multiplexing for V-BLAST Receivers

whitepaper In this paper orthogonal frequency-division multiplexing code-division multiplexing (OFDM-CDM) is extended to multiple-input multiple-output (MIMO) systems and a detection scheme called a space-frequency unified vertical-Bell Labs layered space...

Tags: wireless lan, frequency, detection, division

[26 Jul 2005]

An Improved Detection Technique for Receiver Oriented MIMO-OFDM Systems

whitepaper In rich scattering environments, layered Space Time architectures like the BLAST (Bell Labs Layered Space Time) system may exploit the capacity advantage of multiple antenna systems. In case of a broadband wireless transmission, the channel...

Tags: mobile - wireless communications, space, ofdm, architectures

[26 Jul 2005]

A QoS Management Architecture for Packet Switched 3rd Generation Mobile Systems

whitepaper The third generation of mobile systems will provide different data services (Real Time, and Non Real Time) to end-users. In this context, the use of packet switched services is inevitable because system resources are particularly scarce over a...

Tags: mobile - wireless communications, packet, switched, qos

[19 Jul 2005]

A Real-Time Japanese Broadcast News Closed-Captioning System

whitepaper This paper describes a collaboration between Bell Labs and NHK (Japan Broadcasting Corp. Bell Labs broadcast news recognition engine consists of a two-pass decoder using bigram language models (LM) and right biphone models during the first pass...

Tags: voice recognition, labs, models, recognition

[07 Apr 2005]

Breaking the Barriers of Shannon's Capacity: An Overview of MIMO Wireless Systems

whitepaper Appearing a few years ago in a series of information theory articles published by members of the Bell-Labs, multiple-input multiple-output (MIMO) systems have evolved quickly to both become one of the most popular topics among wireless...

Tags: modems, bell labs, radio, published

[28 Mar 2005]

Cadence Synthesis/Place-&-Route Achieved Time-to-Market Goals

whitepaper As time-to-market was of utmost importance to the team during the design phase, the Cadence engineering team was committed to helping Bell Labs set up their environment and receive the necessary training.

Tags: voip - ip telephony, lucent technologies, bell labs, facility

[21 Mar 2005]

Plan 9 - An Integrated Approach to Grid Computing

whitepaper This paper describes the use of the "Plan 9 from Bell Labs" distributed operating system as a Grid Computing infrastructure. In particular it compares solutions using the de facto standard middleware toolkit for grids, Globus, to an environment...

Tags: high performance computing, operating system, plan, grid

[16 Nov 2004]

The Structure and Management of Service Level Agreements in Networks

whitepaper The paper proposes a structure for quality-of-service (QoS)-centered service level agreements (SLA), and a framework for their real-time management in multiservice packet networks. The SLA is structured to be fair to both parties, the service...

Tags: quality of service, provider, flows, qos

[16 Jul 2004]

A Scalable Monitoring Approach for Service Level Agreements Validation

whitepaper This paper describes a scalable framework for monitoring end-to-end Quality of Service (QoS) with an emphasis on detecting flows that have violated their respective Service Level Agreement (SLA). QoS guarantee has become a highly desirable feature...

Tags: quality of service, service level agreement, quality service, monitor

[16 Jul 2004]

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