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telecom hardware
(106 results)-
Case Studies
Bharti Airtel Case Study
Mar 2008
IBM worked with Bharti Airtel, India's leading telecom, to create an innovative model for IT delivery. For CIO Jai Menon, it means he can now focus more on launching and creating new revenue...
Provided by IBM
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White Papers
Compare IP PBX systems from leading vendors like Cisco, Nortel and Avaya
Feb 2008
This Comparison Guide features the leading PBX systems from established vendors like Siemens, Cisco, Avaya and Nortel as well as cutting edge systems from new vendors like Shoretel and Fonality....
Provided by VoIP-News
-
Whitepapers
Enterprise mobility: connecting to a world of opportunity
Nov 2009
Benefits of enterprise mobility span the business-to-employee (B2E), business-to-business (B2B) and business-to-consumer (B2C) spectrums. Enterprise mobil-ity can improve an organization's...
Provided by IBM
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White Papers
7 Tips for Negotiating Win-Win Telecom Contracts that Don't Cost More than You Bargained
Jan 2011
It has been a tough year for IT and telecom and the hangover promises to be around a bit longer as we take stock of the drastic reactionary measures we rushed into place to stop the cost...
Provided by ProfitLine
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Resource Center
Small Business Phones: The Basics and Beyond
Sep 2008
Hear how small business phones using VoIP, unified messaging, video and other applications can help improve your customer relationships.
Provided by Cisco Systems
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White Papers
Premise IP-PBX Checklist
Jul 2007
This informative research paper will help you understand the crucial questions and the information you need to understand before you buy. Before you sign on the dotted line with a hosted IP PBX...
Provided by Focus.com
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Whitepapers
Time-Varying Channel Emulator for Indoor Power Line Communications
Oct 2008
In the last two decades, a remarkable research effort has been put in PLC systems. These systems cover three main applications: access, the use of the low voltage power network as a last mile...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Media Defect Recovery Using Full-Response Reequalization in Magnetic Recording Channels
Oct 2008
Conventional method for media defect recovery in a Low-Density Parity-Check (LDPC) coded magnetic recording channel is erasure decoding. In erasure decoding, read back signal in media defect...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Lowering LDPC Error Floors by Postprocessing
Oct 2008
A class of combinatorial structures, called absorbing sets, strongly influences the performance of Low-Density Parity Check (LDPC) decoders at low error rates. Past experiments have shown that a...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Evaluation of the Concatenation of LDPC and RS Codes in Magnetic Recording Channel Using Field Programmable Gate Arrays
Oct 2008
Concatenations of inner Low-Density Parity-Check (LDPC) codes and outer Reed-Solomon (RS) codes were evaluated in magnetic recording channel models by simulations using Field Programmable Gate...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
An Improvement on LDPC Coded Queued Codes
Oct 2008
The queued-code based on Low-Density Parity-Check (LDPC) codes, which exploit both the near Shannon-limit performance LDPC codes and the instantaneous Channel State Information (CSI), can provide...
Provided by Institute of Electrical & Electronic Engineers
-
White Papers
Oracle Carrier-Grade Framework: A Foundation for Next-Generation Telecom Appliances
Mar 2010
Trends in the telecom market create an increasing demand for expanded and flexible services, across multiple networks and media types. At the same time, the profitability of the industry's basic...
Provided by Oracle
-
White Papers
Power-Optimized Solutions for Telecom Applications
Jan 2009
Some telecommunications (telecom) carriers now target a 20 percent power reduction per year on the equipment they deploy. This is a response to increasing power consumption in central offices,...
Provided by Altera
-
Product Specs
Avaya 1000 Series Video Conferencing Systems
Aug 2010
Avaya 1000 Series Video Conferencing systems is a suite of low cost, low bandwidth, high definition video endpoints - for point-to-point or between-system video, addressing the needs of small...
Provided by Avaya
-
Product Specs
Avaya Aura Collaboration Server
Sep 2010
Today's businesses must be one step ahead of the competition. Productivity-enhancing communications solutions are a key element of an overall strategy. However, trialing new applications can be...
Provided by Avaya
-
Product Specs
Avaya 1110 IP Deskphone
Mar 2010
The Avaya 1110 IP Deskphone brings a new realm of capabilities to the standard-level set, designed to meet general-purpose communication needs. The single-line Avaya 1110 IP Deskphone delivers...
Provided by Avaya
-
Product Specs
Avaya 1120E IP Deskphone
Apr 2010
The Avaya 1120E IP Deskphone with Gigabit Ethernet unveils an exciting array of innovative communication features and capabilities, ideally suited for office workers and administrative personnel....
Provided by Avaya
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Product Specs
Avaya 1140E IP Deskphone
Apr 2010
The Avaya 1140E IP Deskphone with Gigabit Ethernet brings a new dimension in communication features and capabilities to the professional IP Deskphone. Ideally suited for managers and knowledge...
Provided by Avaya
-
Product Specs
Avaya 1150E IP Deskphone
Mar 2010
The Avaya 1150E IP Deskphone with Gigabit Ethernet brings best-in-class IP Telephony and advanced communication features to ACD environments and the IP Contact Center. An ideal solution for agents...
Provided by Avaya
-
Product Specs
Avaya 1100 Series Expansion Module
Apr 2010
The Avaya 1100 Series Expansion Module is an exciting addition to the award-winning 1100 Series IP Deskphones portfolio. An accessory available to selected models within the 1100 Series IP...
Provided by Avaya
-
Product Specs
Avaya 1210 IP Deskphone
Mar 2010
The 1210 IP Deskphone is a single-line, standard-level desktop phone in the exciting 1200 Series IP Deskphones. Originally designed and optimized for small and medium-sized businesses, the 1200...
Provided by Avaya
-
Product Specs
Avaya 1220 IP Deskphone
Apr 2010
The 1220 IP Deskphone is a multi-line, intermediate-level desktop phone in the exciting 1200 Series IP Deskphones. Originally designed and optimized for small and medium-sized businesses, the 1200...
Provided by Avaya
-
Product Specs
1400 Series Digital Deskphones
Feb 2010
The 1400 Series Digital Deskphones family is designed for the same user profiles as the 9600 Series IP Deskphones or the 1600 Series IP Deskphones. By providing a range of endpoints covering the...
Provided by Avaya
-
Product Specs
The Avaya Desktop Video Device With the Avaya Flare Experience
Sep 2010
Communications and collaboration are a major challenge in today's enterprise, largely because the devices and user interfaces provided to today's enterprise workers are not up to the job:...
Provided by Avaya
-
Product Specs
Avaya One-X Deskphone 9650 IP Telephone
May 2009
The Avaya one-X Deskphone solution family features an intuitive user interface which helps to make users proficient and confident in performing common telephone tasks such as setting up a...
Provided by Avaya
-
Product Specs
2400 Series Digital Telephones
Nov 2007
Avaya 2400 series digital telephones deliver advanced productivity-boosting features, including a large display, key labeling and a 100-entry call log. They are designed for both general business...
Provided by Avaya
-
Product Specs
Ethernet Routing Switch 4500 Series
Mar 2010
The Avaya Ethernet Routing Switch 4500 Series is a Stackable system providing highperformance, convergence-ready, secure and resilient Ethernet switching connectivity. Available as a range of 11...
Provided by Avaya
-
Product Specs
5600 Series IP Telephones
Nov 2007
Avaya 5600 series IP telephones are designed for organizations using IP Office that want a cost effective way to enjoy the benefits of converged communications. These H.323 IP telephones connect...
Provided by Avaya
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Product Specs
Avaya G430 Media Gateway
Jan 2010
The Avaya G430 Media Gateway provides a cost effective, scalable and secure platform for delivery of Avaya Communication Manager-based IP telephony applications. It is targeted to small to midsize...
Provided by Avaya
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Product Specs
Avaya G450 Media Gateway
Jan 2010
The Avaya G450 Media Gateway provides a secure, reliable, and scalable platform for the delivery of Avaya Communication Manager-based IP telephony applications. It is targeted to mid to large...
Provided by Avaya
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Product Specs
Avaya One-X Deskphone 9620/9620L/9620C IP Telephone
May 2009
The Avaya one-X Deskphone family features an intuitive user interface which helps to make users proficient and confident in performing common telephone tasks such as setting up a conference call...
Provided by Avaya
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Product Specs
Avaya Ethernet Routing Switch 8800
Apr 2010
Virtualization can transform your IT infrastructure and your business by providing a clear path to advanced applications that create a unified communications environment. Virtualization delivers...
Provided by Avaya
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Product Specs
Avaya One-X Deskphone 9640/9640G IP Telephone
May 2009
The Avaya one-X Deskphone solution family features an intuitive user interface which helps to make users proficient and confident in performing common telephone tasks such as setting up a...
Provided by Avaya
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Product Specs
Avaya One-X Deskphone Value Edition
Jan 2009
Avaya one-X is a portfolio of communications solutions that deliver a powerful and consistent communications experience for the end user - across a variety of devices and interfaces. Avaya one-X...
Provided by Avaya
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Product Specs
Avaya One-X Deskphone 9670G: One-Touch Access to Contacts, Information, and Applications
Apr 2009
The new Avaya one-X 9670G Deskphone is designed for the "Essential" user: someone who is constantly on the phone, handling multiple calls and is often mobile. The latest addition to the Avaya...
Provided by Avaya
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Product Specs
Avaya 1692 IP Speakerphone: A High-Quality, IP-Enabled Speakerphone for Conference Rooms
Jul 2010
The Avaya 1692 IP Speakerphone provides the convenience and productivity benefits inherent in a powerful, hands-free conference phone. It delivers the extensive set of Avaya Aura features directly...
Provided by Avaya
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White Papers
An Algorithm for NGN Feature Interaction Dectection
Dec 2009
With service design open to third-party in the evolving telecom networks, dynamic method is suitable for Feature Interaction (FI) detection. When implementing this method, however, the violation...
Provided by Academy Publisher
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Whitepapers
Performance Study of a Deep Space Communications System With Low-Density Parity-Check Coding Under Solar Scintillation
Feb 2012
The communication link is the only way for space probe to receive tele-command data from and return telemetry information to the control center on the earth. The design of deep space communication...
Provided by NORTH ATLANTIC UNIVERSITY UNION
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White Papers
An Application-Oriented Model for Wireless Sensor Networks Integrated With Telecom Infra
Sep 2010
This paper aims to propose a significant way of remote access and real time monitoring of a particular geographic area by integrating wireless sensor clouds with existing Telecom infrastructure...
Provided by Indian Institute of Technology Kanpur
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White Papers
New Constructions for UC Secure Computation Using Tamper-Proof Hardware
Oct 2010
The Universal Composability framework was introduced by Canetti to study the security of protocols which are concurrently executed with other protocols in a network environment. Unfortunately it...
Provided by UC Regents
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Whitepapers
Alternatives for Powering Telecommunications Base Stations
Dec 2008
The last decade has seen exponential growth in wireless communication. The growth of mobile networks coupled with intense competition has sharpened operators' focus on deployment logistics,...
Provided by Motorola
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Whitepapers
Novel Algebraic Constructions of Nonbinary Structured LDPC Codes Over Finite Fields
Aug 2008
In this paper, the authors present three algebraic methods for constructing structured non-binary LDPC codes over finite fields, among which the first method is based on the multiplicative...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Log-Likelihood Metrics Based on Two-Symbol-Interval Observations for LDPC Codes With BDPSK Transmission
Aug 2008
Iterative decoding of low-density parity-check codes transmitted over non-coherent channels using binary differential phase-shift keying modulation is examined. Using the joint estimation approach...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Construction of Regular Quasi-Cyclic Protograph LDPC Codes Based on Vandermonde Matrices
Aug 2008
In this paper, the authors investigate the attainable performance of Quasi-Cyclic (QC) protograph Low-Density Parity-Check (LDPC) codes for transmission over both Additive White Gaussian Noise...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
A Two-Stage Algorithm to Reduce Encoding Delay of Turbo Source Coding
Aug 2008
Lossless turbo source coding employs an iterative encoding algorithm to search for the smallest codeword length that guarantees zero distortion. Although such encoder achieves promising...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
EG-LDPC Codes for the Erasure Wiretap Channel
Dec 2009
The wiretap channel model, proposed by Wyner, has been studied by various authors from the perspectives of security, reliability and cryptographic protocols. A basic theme of these discussions has...
Provided by Indian Institute of Technology Madras
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Whitepapers
On the Performance Evaluation of Quasi-Cyclic LDPC Codes With Arbitrary Puncturing
Mar 2010
A novel algorithm, named Improved Protograph-based EXtrinsic Information Transfer (IP-EXIT), is proposed in this paper. With the proposed algorithm, quite accurate performance evaluations of...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Reference Phasor Based Log-Likelihood Ratios for Pilot-Symbol-Assisted BPSK Transmission of LDPC Codes Over the Noncoherent Channel
Mar 2010
The authors derive the log-likelihood ratio for iterative decoding of low-density parity-check codes transmitted using Binary Phase-Shift-Keying (BPSK) with pilot-symbol-assisted modulation. This...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Differential Encoding for Quadrature-Amplitude Modulation
Mar 2010
In this paper, the authors propose a novel differential encoder for QAM (Quadrature-Amplitude Modulation), by a look-up table instead of a rule. Using a table for differential encoding has the...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
A Real-Time High-Throughput LDPC Decoder for IEEE 802.3an Standard
Mar 2010
The existing LDPC decoders are mostly based on the Belief-Propagation (BP) algorithms, due to good BER performances. However, they demand large chip areas. This paper proposes a high-throughput...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Selective-Update Decoding of Non-Binary LDPC Codes
Mar 2010
Non-binary LDPC codes are promising error correcting techniques with very good performance, especially for high order fields. Using higher order fields enhances performance but, at the same time,...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Power Efficient Partial Repeated Cooperation Scheme With Regular LDPC Code
Mar 2010
The partially repeated cooperation system employing Low Density Parity-Check (LDPC) codes achieves space diversity and extra coding gain at the same time. This paper focuses on the power...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Half-Duplex Relaying With Serially-Concatenated Low-Density Generator Matrix (SCLDGM) Codes
Mar 2010
Recently, the integration of cooperation with coding has proven to be a very useful technique to enhance relay system performance. Relay systems based on Low-Density Parity Check (LDPC) codes have...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Two-Step Construction Method of Protograph-Based AR4JA Codes in Deep Space Communication
Aug 2012
This paper discusses the construction of the Accumulate-Repeat-4-Jagged-Accumulate(AR4JA) codes which is suitable for the deep-space communication based on the protograph. Two-step construction...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Distributed Joint Source and Channel Code With Correlated Information Sources
Aug 2012
In this paper, a new Distributed Joint Source-Channel Code (DJSCC) is proposed for a communication network with multiple correlated information sources. The DJSCC is performed by puncturing the...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
HDL Implementation of Low Density Parity Check (LDPC) Decoder
Aug 2012
Low-Density Parity-Check (LDPC) codes are one of the most promising error-correcting codes approaching Shannon capacity and have been adopted in many applications. These codes offer huge...
Provided by International Journal of Electronics and Computer Science Engineering
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Whitepapers
LDPC Decoder Modelling and Evaluation Using RT-PEPA
Aug 2012
This paper presents a high-throughput memory efficient decoder for Low Density Parity Check (LDPC) codes in the high-rate wireless personal area network application. The novel techniques which can...
Provided by Academy & Industry Research Collaboration Center
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Whitepapers
Operating LDPC Codes With Zero Shaping Gap
Sep 2011
Unequal transition probabilities between input and output symbols, input power constraints, or input symbols of unequal durations can lead to non-uniform capacity achieving input distributions for...
Provided by RWSoftware
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Whitepapers
Distributed LDPC Coders in Cooperative Relay Networks
Sep 2009
In this paper, a new distributed LDPC coder is developed in the cooperative relay networks. Although the proposed scheme requires to use the same bandwidth as the conventional approach over OFDM...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
A Design of Parity Check Matrix for Irregular LDPC Codes
Sep 2009
This paper outlines a work on a design of parity check matrix for Irregular LDPC codes. The design is based on the adjustment of the modified array LDPC codes and interleave-modified array LDPC...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Modulation-Assisted UEP-LDPC Codes in Image Transmission
Sep 2009
Based on irregular UEP-LDPC codes, a modulation-assisted UEP scheme is proposed by using QPSK and 16QAM mapping, in order to achieve good tradeoff between reliability and spectrum efficiency....
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Performance Study of a Deep Space Communications System With Low-Density Parity-Check Coding Under Solar Scintillation
Feb 2012
The communication link is the only way for space probe to receive tele-command data from and return telemetry information to the control center on the earth. The design of deep space communication...
Provided by NORTH ATLANTIC UNIVERSITY UNION
-
Whitepapers
An Improvement on LDPC Coded Queued Codes
Oct 2008
The queued-code based on Low-Density Parity-Check (LDPC) codes, which exploit both the near Shannon-limit performance LDPC codes and the instantaneous Channel State Information (CSI), can provide...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Evaluation of the Concatenation of LDPC and RS Codes in Magnetic Recording Channel Using Field Programmable Gate Arrays
Oct 2008
Concatenations of inner Low-Density Parity-Check (LDPC) codes and outer Reed-Solomon (RS) codes were evaluated in magnetic recording channel models by simulations using Field Programmable Gate...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Lowering LDPC Error Floors by Postprocessing
Oct 2008
A class of combinatorial structures, called absorbing sets, strongly influences the performance of Low-Density Parity Check (LDPC) decoders at low error rates. Past experiments have shown that a...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Media Defect Recovery Using Full-Response Reequalization in Magnetic Recording Channels
Oct 2008
Conventional method for media defect recovery in a Low-Density Parity-Check (LDPC) coded magnetic recording channel is erasure decoding. In erasure decoding, read back signal in media defect...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Time-Varying Channel Emulator for Indoor Power Line Communications
Oct 2008
In the last two decades, a remarkable research effort has been put in PLC systems. These systems cover three main applications: access, the use of the low voltage power network as a last mile...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Rate Adaptive Binary Erasure Quantization With Dual Fountain Codes
Oct 2008
In this contribution, duals of fountain codes are introduced and their use for lossy source compression is investigated. It is shown both theoretically and experimentally that the source coding...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Clustering of Cycles and Construction of LDPC Codes
Oct 2008
The clustering of cycles to form stopping sets are first observed by T. Tian and et al. As the determination of stopping sets of minimum size is NP-hard, the authors propose to consider clustering...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
A Class of Quantum LDPC Codes Constructed From Finite Geometries
Oct 2008
Low-Density Parity Check (LDPC) codes are a significant class of classical codes with many applications. Several good LDPC codes have been constructed using random, algebraic, and finite...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Fast Identification of Error-Prone Patterns for LDPC Codes Under Message Passing Decoding
Oct 2008
Although density evolution accurately predicts the asymptotic performance of LDPC codes, it provides limited information for codes of short or moderate block length. For this reason, combinatorial...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Noise Thresholds for Discrete LDPC Decoding Mappings
Oct 2008
For decoding Low-Density Parity-Check (LDPC) codes on discrete memoryless channels, a method to quantize messages and to find message-passing decoding functions for the variable and check nodes is...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Low-Complexity LDPC Codes With Near-Optimum Performance Over the BEC
Jul 2008
Recent works showed how Low-Density Parity-Check (LDPC) erasure correcting codes, under Maximum Likelihood (ML) decoding, are capable of tightly approaching the performance of an ideal...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
On the Growth Rate of Irregular GLDPC Codes Weight Distribution
Jul 2008
In this paper the exponential growth rate of irregular Generalized Low-Density Parity-Check (GLDPC) codes weight distribution is considered. Specifically, the Taylor series of the growth rate is...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Convolutional Codes for Iterative Decoding
Jul 2008
This paper gives an overview of three different classes of convolutional codes that are suitable for iterative decoding. The authors are characterized by the type of component codes that are used...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
The F-LDPC Family: High-Performance Flexible Modern Codes for Flexible Radio
Jul 2008
Flexibility is an increasingly important aspect of radio modem design. In this paper, flexibility within the PHYsical (PHY) layer in general, and the Forward Error Correction (FEC) component in...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Soft Detection of Modulation Diversity Schemes for Next Generation Digital Terrestrial Television
Jul 2008
The next generation of Digital Video Broadcasting Terrestrial Television (DVB-T2) standard requires to improve performance of the current DVB-T standard. Commercial and technical reasons suggest...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Bit-Interleaved LDPC-Coded Modulation With Iterative Demapping and Decoding
Mar 2009
Bit-Interleaved Coded Modulation (BICM) is a suboptimal scheme from the Average Mutual Information (AMI) point of view due to independent demapping. However, this AMI loss can be neglected for...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Modified Iterative Two-Stage Hybrid Decoding Algorithm for Low-Density Parity-Check (LDPC) Codes
Mar 2009
This paper considers a modified iterative version of the two-stage hybrid algorithm for decoding Low-Density Parity Check (LDPC) codes. The hybrid-decision scheme is a decoding scheme used that...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Low Complexity DVB-S2 LDPC Decoder
Mar 2009
The decoding complexity is the main issue in designing DVB-S2 Low Density Parity Check (LDPC) decoder. This paper proposes a low complexity decoder, which is based on a new row message passing...
Provided by Institute of Electrical & Electronic Engineers
-
White Papers
Increase your Competitive Advantage with Business Communication Technology
Apr 2007
Most traditional business communications rely on telephone and paper-based processes. These resources do not readily support the level of productive interaction that growing businesses need to...
Provided by Cisco Systems
-
White Papers
Compare IP PBX systems from leading vendors like Cisco, Nortel and Avaya
Feb 2008
This Comparison Guide features the leading PBX systems from established vendors like Siemens, Cisco, Avaya and Nortel as well as cutting edge systems from new vendors like Shoretel and Fonality....
Provided by VoIP-News
-
Whitepapers
Enterprise mobility: connecting to a world of opportunity
Nov 2009
Benefits of enterprise mobility span the business-to-employee (B2E), business-to-business (B2B) and business-to-consumer (B2C) spectrums. Enterprise mobil-ity can improve an organization's...
Provided by IBM
-
Whitepapers
Time-Varying Channel Emulator for Indoor Power Line Communications
Oct 2008
In the last two decades, a remarkable research effort has been put in PLC systems. These systems cover three main applications: access, the use of the low voltage power network as a last mile...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Media Defect Recovery Using Full-Response Reequalization in Magnetic Recording Channels
Oct 2008
Conventional method for media defect recovery in a Low-Density Parity-Check (LDPC) coded magnetic recording channel is erasure decoding. In erasure decoding, read back signal in media defect...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Lowering LDPC Error Floors by Postprocessing
Oct 2008
A class of combinatorial structures, called absorbing sets, strongly influences the performance of Low-Density Parity Check (LDPC) decoders at low error rates. Past experiments have shown that a...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
Evaluation of the Concatenation of LDPC and RS Codes in Magnetic Recording Channel Using Field Programmable Gate Arrays
Oct 2008
Concatenations of inner Low-Density Parity-Check (LDPC) codes and outer Reed-Solomon (RS) codes were evaluated in magnetic recording channel models by simulations using Field Programmable Gate...
Provided by Institute of Electrical & Electronic Engineers
-
Whitepapers
An Improvement on LDPC Coded Queued Codes
Oct 2008
The queued-code based on Low-Density Parity-Check (LDPC) codes, which exploit both the near Shannon-limit performance LDPC codes and the instantaneous Channel State Information (CSI), can provide...
Provided by Institute of Electrical & Electronic Engineers
-
White Papers
Oracle Carrier-Grade Framework: A Foundation for Next-Generation Telecom Appliances
Mar 2010
Trends in the telecom market create an increasing demand for expanded and flexible services, across multiple networks and media types. At the same time, the profitability of the industry's basic...
Provided by Oracle
-
White Papers
Power-Optimized Solutions for Telecom Applications
Jan 2009
Some telecommunications (telecom) carriers now target a 20 percent power reduction per year on the equipment they deploy. This is a response to increasing power consumption in central offices,...
Provided by Altera
-
Product Specs
Avaya 1000 Series Video Conferencing Systems
Aug 2010
Avaya 1000 Series Video Conferencing systems is a suite of low cost, low bandwidth, high definition video endpoints - for point-to-point or between-system video, addressing the needs of small...
Provided by Avaya
-
Product Specs
Avaya Aura Collaboration Server
Sep 2010
Today's businesses must be one step ahead of the competition. Productivity-enhancing communications solutions are a key element of an overall strategy. However, trialing new applications can be...
Provided by Avaya
-
Product Specs
Avaya 1110 IP Deskphone
Mar 2010
The Avaya 1110 IP Deskphone brings a new realm of capabilities to the standard-level set, designed to meet general-purpose communication needs. The single-line Avaya 1110 IP Deskphone delivers...
Provided by Avaya
-
Product Specs
Avaya 1120E IP Deskphone
Apr 2010
The Avaya 1120E IP Deskphone with Gigabit Ethernet unveils an exciting array of innovative communication features and capabilities, ideally suited for office workers and administrative personnel....
Provided by Avaya
-
Product Specs
Avaya 1140E IP Deskphone
Apr 2010
The Avaya 1140E IP Deskphone with Gigabit Ethernet brings a new dimension in communication features and capabilities to the professional IP Deskphone. Ideally suited for managers and knowledge...
Provided by Avaya
-
Product Specs
Avaya 1150E IP Deskphone
Mar 2010
The Avaya 1150E IP Deskphone with Gigabit Ethernet brings best-in-class IP Telephony and advanced communication features to ACD environments and the IP Contact Center. An ideal solution for agents...
Provided by Avaya
-
Product Specs
Avaya 1100 Series Expansion Module
Apr 2010
The Avaya 1100 Series Expansion Module is an exciting addition to the award-winning 1100 Series IP Deskphones portfolio. An accessory available to selected models within the 1100 Series IP...
Provided by Avaya
-
Product Specs
Avaya 1210 IP Deskphone
Mar 2010
The 1210 IP Deskphone is a single-line, standard-level desktop phone in the exciting 1200 Series IP Deskphones. Originally designed and optimized for small and medium-sized businesses, the 1200...
Provided by Avaya
-
Product Specs
Avaya 1220 IP Deskphone
Apr 2010
The 1220 IP Deskphone is a multi-line, intermediate-level desktop phone in the exciting 1200 Series IP Deskphones. Originally designed and optimized for small and medium-sized businesses, the 1200...
Provided by Avaya
-
Product Specs
1400 Series Digital Deskphones
Feb 2010
The 1400 Series Digital Deskphones family is designed for the same user profiles as the 9600 Series IP Deskphones or the 1600 Series IP Deskphones. By providing a range of endpoints covering the...
Provided by Avaya
-
Product Specs
The Avaya Desktop Video Device With the Avaya Flare Experience
Sep 2010
Communications and collaboration are a major challenge in today's enterprise, largely because the devices and user interfaces provided to today's enterprise workers are not up to the job:...
Provided by Avaya
-
Product Specs
Avaya One-X Deskphone 9650 IP Telephone
May 2009
The Avaya one-X Deskphone solution family features an intuitive user interface which helps to make users proficient and confident in performing common telephone tasks such as setting up a...
Provided by Avaya
-
Product Specs
2400 Series Digital Telephones
Nov 2007
Avaya 2400 series digital telephones deliver advanced productivity-boosting features, including a large display, key labeling and a 100-entry call log. They are designed for both general business...
Provided by Avaya
-
Product Specs
Ethernet Routing Switch 4500 Series
Mar 2010
The Avaya Ethernet Routing Switch 4500 Series is a Stackable system providing highperformance, convergence-ready, secure and resilient Ethernet switching connectivity. Available as a range of 11...
Provided by Avaya
-
Product Specs
5600 Series IP Telephones
Nov 2007
Avaya 5600 series IP telephones are designed for organizations using IP Office that want a cost effective way to enjoy the benefits of converged communications. These H.323 IP telephones connect...
Provided by Avaya
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Product Specs
Avaya G430 Media Gateway
Jan 2010
The Avaya G430 Media Gateway provides a cost effective, scalable and secure platform for delivery of Avaya Communication Manager-based IP telephony applications. It is targeted to small to midsize...
Provided by Avaya
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Product Specs
Avaya G450 Media Gateway
Jan 2010
The Avaya G450 Media Gateway provides a secure, reliable, and scalable platform for the delivery of Avaya Communication Manager-based IP telephony applications. It is targeted to mid to large...
Provided by Avaya
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Product Specs
Avaya One-X Deskphone 9620/9620L/9620C IP Telephone
May 2009
The Avaya one-X Deskphone family features an intuitive user interface which helps to make users proficient and confident in performing common telephone tasks such as setting up a conference call...
Provided by Avaya
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Product Specs
Avaya Ethernet Routing Switch 8800
Apr 2010
Virtualization can transform your IT infrastructure and your business by providing a clear path to advanced applications that create a unified communications environment. Virtualization delivers...
Provided by Avaya
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Product Specs
Avaya One-X Deskphone 9640/9640G IP Telephone
May 2009
The Avaya one-X Deskphone solution family features an intuitive user interface which helps to make users proficient and confident in performing common telephone tasks such as setting up a...
Provided by Avaya
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Product Specs
Avaya One-X Deskphone Value Edition
Jan 2009
Avaya one-X is a portfolio of communications solutions that deliver a powerful and consistent communications experience for the end user - across a variety of devices and interfaces. Avaya one-X...
Provided by Avaya
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Product Specs
Avaya One-X Deskphone 9670G: One-Touch Access to Contacts, Information, and Applications
Apr 2009
The new Avaya one-X 9670G Deskphone is designed for the "Essential" user: someone who is constantly on the phone, handling multiple calls and is often mobile. The latest addition to the Avaya...
Provided by Avaya
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Product Specs
Avaya 1692 IP Speakerphone: A High-Quality, IP-Enabled Speakerphone for Conference Rooms
Jul 2010
The Avaya 1692 IP Speakerphone provides the convenience and productivity benefits inherent in a powerful, hands-free conference phone. It delivers the extensive set of Avaya Aura features directly...
Provided by Avaya
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White Papers
7 Tips for Negotiating Win-Win Telecom Contracts that Don't Cost More than You Bargained
Jan 2011
It has been a tough year for IT and telecom and the hangover promises to be around a bit longer as we take stock of the drastic reactionary measures we rushed into place to stop the cost...
Provided by ProfitLine
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White Papers
An Algorithm for NGN Feature Interaction Dectection
Dec 2009
With service design open to third-party in the evolving telecom networks, dynamic method is suitable for Feature Interaction (FI) detection. When implementing this method, however, the violation...
Provided by Academy Publisher
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Whitepapers
Performance Study of a Deep Space Communications System With Low-Density Parity-Check Coding Under Solar Scintillation
Feb 2012
The communication link is the only way for space probe to receive tele-command data from and return telemetry information to the control center on the earth. The design of deep space communication...
Provided by NORTH ATLANTIC UNIVERSITY UNION
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White Papers
An Application-Oriented Model for Wireless Sensor Networks Integrated With Telecom Infra
Sep 2010
This paper aims to propose a significant way of remote access and real time monitoring of a particular geographic area by integrating wireless sensor clouds with existing Telecom infrastructure...
Provided by Indian Institute of Technology Kanpur
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White Papers
New Constructions for UC Secure Computation Using Tamper-Proof Hardware
Oct 2010
The Universal Composability framework was introduced by Canetti to study the security of protocols which are concurrently executed with other protocols in a network environment. Unfortunately it...
Provided by UC Regents
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Whitepapers
Modulation-Assisted UEP-LDPC Codes in Image Transmission
Sep 2009
Based on irregular UEP-LDPC codes, a modulation-assisted UEP scheme is proposed by using QPSK and 16QAM mapping, in order to achieve good tradeoff between reliability and spectrum efficiency....
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
A Design of Parity Check Matrix for Irregular LDPC Codes
Sep 2009
This paper outlines a work on a design of parity check matrix for Irregular LDPC codes. The design is based on the adjustment of the modified array LDPC codes and interleave-modified array LDPC...
Provided by Institute of Electrical & Electronic Engineers
