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Containing the Cost of Enterprise Databases while Boosting their Flexibility and Availability: Sybase ASE Cluster Edition
Reign in the cost and complexity of database server management with a flexible approach combining consolidation, virtualization and grid deployment.
Sponsored by: Sybase
Date: September 2009 |
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Transform your Multi-Channel Customer Experience: Advantages of Customer Communications Management
Create, manage and deliver multi-channel communications with greater personalization, control, and efficiency via Customer Communications Management.
Sponsored by: Pitney Bowes Insight
Date: November 2009 |
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Momentum Webcast: Windows 7 and Hyper-V Deep Dive (Level 100)
Take the plunge and discover how to boost your business by combining the power of the Windows 7 operating system with Hyper-V virtualization.
Sponsored by: Microsoft
Date: August 2009 |
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Momentum Webcast: Breakthroughs With Windows 7 (Level 100)
Discover the impact Windows 7 can have on your business with its hot new capabilities, power features, turbocharged virtualization secrets, and more.
Sponsored by: Microsoft
Date: July 2009 |
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Live Webcast: Older PCs Costing You More Than You Think: The Financial Rewards of PC Refresh
Your older PCs cost you more than you think. Learn how refreshing them now can increase productivity and security, plus drive down PC management costs.
Sponsored by: Intel
Date: November 2009 |
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- Showing items 1-40 of 60
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RS-232: A Key To Understanding Data Communications
Experts have been predicting the death of the RS-232 interface for decades, and yet it continues to serve us well. It is a highly proven...
Sponsored by: Global Knowledge
Date: July 2008 |
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Enhance Customer Loyalty through Higher Responsiveness
The economic downturn is forcing businesses to tighten their belts and look for more efficient channels. Using the Internet as a business channel, and sometimes...
Sponsored by: Oracle
Date: April 2009 |
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Transform your Multi-Channel Customer Experience: Advantages of Customer Communications Management
Improving the way you communicate with customers effectively managing and delivering more personalized and unified customer communications, across today's diverse media channels can maximize returns....
Sponsored by: Pitney Bowes Insight
Date: November 2009 |
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The Role of Power Line Communications in the Networked Home The role of power line communications in the home network is as an omnipresent device control and high speed networking avenue. Power line device control... Company: ITRAN Communications | ITRAN Communications |
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Build Yourself an ISP As an ISP you will offer a service which generally includes some kind of access to the Internet. This can be through dial-up modems, DSL,... Company: Patton Electronics | Patton Electronics |
| More Search Results Below | ||
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Cable Modems Cable modems are devices that allow high-speed access to the Internet via a cable television network. While similar in some respects to a traditional analog... Company: International Engineering Consortium | International Engineering Consortium |
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All You Wanted to Know About T1 But Were Afraid to Ask We are experiencing a breakneck growth in the interconnection of personal computers, terminals and telephones in the business environment. T1 technology is proving to be... Company: Data Comm for Business | Data Comm for Business |
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Understanding Upstream Modulation Profiles
Modulation profiles define how information will be transmitted upstream, from a cable modem to the cable modem termination system (CMTS). Many upstream modulation profile variables...
Company: Cisco Systems
Date: January 2003 |
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OFDM Receiver Design
Othogonal Frequency Division Multiplex (OFDM) has gained considerable attention in recent years. It has been adopted for various standards include the 802.11a wireless LAN standard....
Company: Regents of the University of California
Date: December 2000 |
Regents of the University of California |
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Design and Simulation of Orthogonal Frequency Division Multiplexing (OFDM) Signaling
A MATLAB program has been written to investigate Orthogonal Frequency Division Multiplexing (OFDM) communication systems. This program is valuable for future researchers simulating systems that...
Company: Bradley University
Date: May 2001 |
Bradley University |
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OFDM Versus Single Carrier With Cyclic Prefix: A System-Based Comparison In recent years, wireless indoor networks have received a lot of scientific and industrial attention. Most systems rely on the use of Orthogonal Frequency Division... Company: Interuniversity MicroElectronics Center | Interuniversity MicroElectronics Center |
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Constant Envelope OFDM Phase Modulation: Spectral Containment, Signal Space Properties and Performance A class of constant envelope OFDM phase modulated (OFDM-PM) signals is studied. The motivation behind OFDM-PM is to alleviate the high peak-to-average power ratio of... Company: Regents of the University of California | Regents of the University of California |
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Generalized 8-PSK for Totally Blind Channel Estimation in OFDM Channel estimation in OFDM systems can conveniently be done by inserting a stream of pilot symbols at the transmitter and by using FIR interpolation filters... Company: University of Stuttgart | University of Stuttgart |
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OFDM or Single-Carrier Block Transmissions?
This paper compares two block transmission systems over frequency-selective fading channels: orthogonal frequency-division multiplexing (OFDM) versus single-carrier modulated blocks with zero padding (ZP). It first...
Company: Regents of the University of Minnesota
Date: March 2004 |
Regents of the University of Minnesota |
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Spectral Spreading by Linear Block Codes for OFDM in Powerline Communications
Power Line Communication (PLC) uses the highly developed infrastructure of the electrical energy distribution network for data transmission. Measurements are showing that a broadband use...
Company: University of Saarland
Date: August 2002 |
University of Saarland |
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M-QAM OFDM and PCC-OFDM Performance in the Presence of Phase Noise
This paper addresses the issue of OFDM and PCC-OFDM systems impaired by phase noise (PN). PCC-OFDM is a variation of OFDM in which data is...
Company: Monash University
Date: November 2003 |
Monash University |
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Impact of the Propagation Environment on the Performance of Space-Frequency Coded MIMO-OFDM Previous work on space-frequency coded MIMOOFDM has been restricted to idealistic propagation conditions. In this paper, using a broadband MIMO channel model taking into account... Company: ETH Zurich | ETH Zurich |
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Adaptive Resource Allocation in Multiuser OFDM Systems With Proportional Fairness
Multiuser orthogonal frequency division multiplexing (MU-OFDM) is a promising technique for achieving high downlink capacities in future cellular and wireless LAN systems. The sum capacity...
Company: University of Texas at Austin
Date: June 2004 |
University of Texas at Austin |
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Intercarrier and Intersymbol Interference Analysis of OFDM Systems on Time-Varying Channels In intersymbol interference (ISI) and intercarrier interference (ICI) for OFDM systems with insufficient guard length was analyzed in the case of time-invariant radio channels. This... Company: University of Hannover | University of Hannover |
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ICI Cancellation Based Channel Estimation for OFDM Systems Orthogonal Frequency Division Multiplexing OFDM), which is a multicarrier modulation scheme, splits high data rate information symbols into lower rate parallel data streams and transmits... Company: University of South Florida | University of South Florida |
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Cross-Layer Optimization of OFDM Systems for 4G Wireless Communications
This paper advocates cross-layer optimization over the whole ISO/OSI protocol stack. As an example this paper refers to a system using multiple description coding at...
Company: Aalborg University
Date: August 2004 |
Aalborg University |
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PAPR Reduction in OFDM Systems Using Constellation Shaping Orthogonal Frequency Division Multiplexing (OFDM) is a multicarrier transmission technique, which is widely adopted in different communication applications. OFDM prevents Inter Symbol Interference (ISI) by... Company: University of Waterloo | University of Waterloo |
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On the Capacity of the Broadband Relay Networks
The paper studies the capacity of the OFDM and the OFDMA relay networks. Two relay schemes, amplify-and-forward (AF) relay and decode-and-forward (DF) relay are analyzed...
Company: University of Washington
Date: June 2004 |
University of Washington |
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Performance of Joint Detection Techniques for Coded MIMO-OFDM and MIMO-MC-CDM
This paper considers a coded transmission over a time-invariant MIMO channel where channel state information is present at the receiver but not at the transmitter....
Company: Universität Ulm
Date: May 2003 |
Universität Ulm |
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On the Optimality of the OFDMA Network
This paper studies the optimality of the OFDMA network. It is proved that in the multiuser multicarrier downlink system with independent decoding, OFDMA is the...
Company: University of Washington
Date: July 2004 |
University of Washington |
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Downlink Radio Resource Allocation for Multi-Cell OFDMA System
Orthogonal frequency division multiple access (OFDMA) provides a feasible broadband platform where different forms of multiuser diversities (e.g., mutual interference, selective fading channels and bursty...
Company: University of Washington
Date: December 2003 |
University of Washington |
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Capacity Analysis on Downlink MIMO OFDMA Systems
Motivated by the increasing popularity of OFDMA and MIMO, this paper studies the capacity of MIMO enabled OFDMA system under a generic multiuser multicarrier framework....
Company: University of Washington
Date: August 2004 |
University of Washington |
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Broadband MIMO-OFDM Wireless Communications
Orthogonal frequency division multiplexing (OFDM) is a popular method for high data rate wireless transmission. OFDM may be combined with antenna arrays at the transmitter...
Company: Georgia Institute of Technology
Date: February 2004 |
Georgia Institute of Technology |
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The Principles of OFDM
The principles of orthogonal frequency division multiplexing (OFDM) modulation have been in existence for several decades. However, in recent years these techniques have quickly moved...
Company: PRIMEDIA
Date: January 2001 |
PRIMEDIA |
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Protecting the Robustness of ADSL and VDSL DMT Modems When Applying DSM When transmitting data over an ADSL or VDSL link, performance is very important. In order to improve the bit rate that can be achieved over... Company: Katholieke Universiteit Leuven | Katholieke Universiteit Leuven |
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ADSL Around the Home
Even if you only have one computer, and it is near your 'master' socket, you will need to consider ADSL filtering. This is because the...
Company: Solwise
Date: October 2004 |
Solwise |
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Solutions for ADSL Line Interfaces
Asymmetric Digital Subscriber Line (ADSL) is a modem technology converting existing twisted-pair telephone lines into access paths for multimedia and high-speed data communications. ADSL allows...
Company: STMicroelectronics
Date: December 2004 |
STMicroelectronics |
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Optimized ADSL Performance
In the design of a production video over ADSL delivery network, each piece of the end to end system must be considered in order to...
Company: Allied Telesis
Date: May 2004 |
Allied Telesis |
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Case Study: NLOS Broadband Wireless Deployment for Small Town / Rural Markets This case study shows how a non-line of sight (NLOS) broadband wireless Internet access system successfully serves a small town/rural market. NextNet's Expedience NLOS system... Company: NextNet Wireless | NextNet Wireless |
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Powerline Communications Technology - Residential Versus Commercial
The Telkonet PlugPlus system is a robust system for commercial applications, scalable to hundreds of users. It is intended for large installations, such as hotels...
Company: Telkonet
Date: May 2004 |
Telkonet |
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Adaptive MIMO OFDM Receivers: Implementation Impairments and Complexity Issues
MIMO OFDM communications is a promising choice for future high data rate wireless systems. However, the commercial deployment of MIMO OFDM systems faces some challenges,...
Company: University of California
Date: August 2004 |
University of California |
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Throughput of a MIMO OFDM Based WLAN System
In this paper, the system throughput of a wireless local-area-network (WLAN) based on multiple-input multiple-output orthogonal frequency division multiplexing (MIMO OFDM) is studied. A broadband...
Company: Technical University of Eindhoven
Date: September 2004 |
Technical University of Eindhoven |
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A Fourth-Generation MIMO-OFDM Broadband Wireless System: Design, Performance, and Field Trial Results
Increasing demand for high-performance 4G broadband wireless is enabled by the use of multiple antennas at both base station and subscriber ends. Multiple antenna technologies...
Company: Institute of Electrical and Electronics Engineers
Date: September 2002 |
Institute of Electrical and Electronics Engineers |
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Interpolation-Based Efficient Matrix Inversion for MIMO-OFDM Receivers
This paper proposes a new class of computationally efficient algorithms for inverting the channel matrices in zero-forcing MIMO-OFDM receivers. Depending on the number of channel...
Company: ETH Zurich
Date: December 2004 |
ETH Zurich |
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Principles of MIMO-OFDM Wireless Systems The use of multiple antennas at both ends of a wireless link (MIMO technology) holds the potential to drastically improve the spectral efficiency and link... Company: ETH Zurich | ETH Zurich |
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