error data rate
A Bandwidth Efficient Modulation Scheme Using Quasi-Orthogonal Sequences
White Paper High bandwidth efficiency and quasi-orthogonality between the modulation symbols allows to increase the normalized data rate with little or no degradation in the required signal-to-noise ratio per bit to achieve a given error probability compared... [11 Jul 2008]
A Novel Coding Technique to Minimise the Transmission Bandwidth and Bit Error Rate in DPSK
White Paper This paper proposes a novel coding technique that aims to reduce the Transmission Bandwidth (BT) and Bit Error Rate (BER) vis-a-vis Conventional Differential Phase Shift Keying (CDPSK) in digital band pass transmission. [08 Jul 2008]
Interference Between Bluetooth Networks - Upper Bound on the Packet Error Rate
White Paper The air interface modulation is Gaussian FSK with a raw bit rate of 1 Mb/s. Bluetooth is a digital wireless data transmission standard in the 2.4-GHz ISM band aimed at providing a short range wireless link between laptops, cellular phones and other... [03 Jul 2008]
HP DAT Tape Drives - Proven Reliability: Why HP Enhanced the MTBF and Error Rate Specifications for DDS-4 and DAT 72 Tape Drives
White Paper MTBF is the average time the drive will operate without failing, and the error rate is the ratio of the number of bits received in a data stream that are found to be in error to the total number of bits transmitted, usually expressed as a negative... [03 Jul 2008]
On the Capacity of a Wideband Multi-Rate CDMA System With Multi-Service in the Presence of Fading and Power Control Error
White Paper This paper modifies the interference-modelling capacity analysis method developed by Gilhousen et al.to make it appropriate for investigating the capacity of a variable spreading gain (VSG) DS-CDMA system with multi-service in the presence of... [03 Jul 2008]
Wireless Optical Transmission of Fast Ethernet, FDDI, ATM, and ESCON Protocol Data
White Paper By designing the lasercom link with sufficient margin for atmospheric attenuation and scintillation, a bit error rate (BER) of 10 29 or better can be achieved. The TerraLink laser communication (lasercom) system was developed as a cost-effective... [03 Jul 2008]
Proactive Web Caching with Cumulative Prefetching for Large Multimedia Data
White Paper The experimental results demonstrate that the proposed scheme substantially reduces error rate and increases byte hit rate for large multimedia data. Due to the simplicity of incorporating various types of data into the web, non-negligible access... [03 Jul 2008]
Object-Based Rate Control for the MPEG-4 Visual Simple Profile
White Paper This functionality is currently supported in the available video coding standards, like H.261, H.263, MPEG-1, and MPEG-2 by using hybrid coding schemes, which mainly consist in the application of transform coding on the motion compensated... [03 Jul 2008]
ICI Cancellation Based Channel Estimation for OFDM Systems
White Paper Channel estimation error degrades the performance of coherent receiver limiting capacity, data rate and performance of the overall OFDM system. Orthogonal Frequency Division Multiplexing OFDM), which is a multicarrier modulation scheme, splits high... [11 Apr 2008]
Detection of OFDM-CPM Signals Over Multipath Channels
White Paper The receivers are analyzed for bit-error-rate (BER) performance in terms of high- and low-SNR bounds. A class of Orthogonal Frequency Division Multiplexing - Continuous Phase Modulation (OFDM-CPM) signals is introduced in which binary data sequence... [10 Apr 2008]
Development Dimensions International Automates Printing and Invoicing Processes to Improve Productivity
White Paper DDI wanted to eliminate manual document printing processes to increase throughput and reduce operator error and eliminate manual input of currency rate data. The challenge was to improve the timeliness and accuracy of data used for invoicing and... [25 Mar 2008]
Tools for Distributed Monitoring of the Campus Network With Low Latency Time
White Paper A suite of tools consisting of several programs running in a distributed environment to measure network parameters such as average round-trip time, traffic, throughput, error rate, DNS responses and others from different locations in the network... [05 Mar 2008]
Tax payer still owed millions by EDS
News The PAC report says the tax credit system continues to suffer the "highest rate of error and fraud in central government", with about £1bn of tax credits still being lost to fraud and error each year. [05 Feb 2008]
SCPS-TP, TCP, and Rate-Based Protocol Evaluation
White Paper The results indicated that SCPSTP congestion-friendly options perform slightly better than TCP SACK protocols at moderate and high error-rates whereas IP rate-based protocols performed slightly better than SCPS-TP rate-based options. [15 Jan 2008]
SCPS-TP, TCP and Rate-Based Protocol Evaluation for High Delay, Error Prone Links
White Paper Tests were performed at Glenn Research Center to validate the operation of SCPS-TP relative to the Consultative Committee on Space Data Systems (CCSDS) specification, to perform a comprehensive comparison of SCPS-TP protocol options to IP based... [15 Jan 2008]
