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Correlation Matching in Channel Estimation for Multirate DS/CDMA
White Paper By properly selecting a weighting matrix in the matching cost function, significant improvement is observed. However, signature waveforms of various symbols from a user are convolutions of spreading codes with a common channel. [03 Jul 2008]
High Performance Delivered: From Compliance to Competitive Impact Through Radio Frequency Identification
White Paper Accenture RFID/EPC Strategy Matrix helps companies answer these questions. The matrix helps clients identify their immediate course of action - which is most often a response to mandates - and leverage RFID/EPC to achieve long-term competitive... [03 Jul 2008]
Cheat Sheet: QR codes
Cheat Sheet A QR code is a 2D matrix barcode which uses an arrangement of squares to encode information horizontally and vertically. Or you may find a text message has been encoded in the matrix… It is not a QR code but another type of 2D code, called a Data... [28 May 2008]
How to Choose the Best Data Capture Technology
White Paper As bar codes became commonplace, companies realized the advantage of carrying more data, leading to new symbologies such as PDF417 and matrix codes that convey far more information, and now radio frequency identification (RFID), which can serve as... [01 May 2008]
Linear Parallel Interference Cancellation in Long-Code CDMA Multiuser Detection
White Paper Following this interpretation, a unique set of weights, based on the eigenvalues of the correlation matrix, was found to lead to the minimum achievable MSE for a given number of stages in a short-code system. [10 Apr 2008]
New GS1 2D Matrix Symbology Support
White Paper However, in order to stay up with the launch of these new GS1 initiatives, the Tabletop Engineering group is working on the release of three new 2D symbologies: Aztec, Composite Bar Codes and DataBar. [13 Jul 2007]
Blind Adaptive Multiuser Detection for Uplink Long-Code CDMA Systems
White Paper Since the constraints involve covariance of the received data, which is time varying and can not be obtained by traditional sample average, this paper thus proposes to approximate it using estimated signature matrix and noise power. [09 Nov 2006]
Temporal Diversity Assisted Blind Channel Estimation for Downlink Long-Code CDMA Systems
White Paper In CDMA downlink, subspace channel estimation can not be applied directly since long spreading codes destroy the rank condition of the received data covariance matrix. However, after introducing temporal diversity in the transmitted chip sequence... [08 Nov 2006]
Linear Multiuser Detection for Uplink Long-Code CDMA Systems
White Paper To detect information symbols, first the subspace technique is applied to estimate multipath parameters for the user of interest based on the correlation matrix of whitened data. In the uplink of a long-code CDMA system, base station knows... [08 Nov 2006]
Cayley Differential Unitary Space-Time Codes
White Paper This transformation leads to a simple linear constellation structure in the Cayley transform domain and to an information-theoretic design criterion based on emulating a Cauchy random matrix. This paper proposes a class of Cayley codes that works... [07 Apr 2005]
The Printronix P5000 Series of Line Matrix Printers Provides Immediate ROI for an Automotive Manufacturer
White Paper The automotive manufacturer was using dot matrix printers in its operations. The company purchased the Printronix P5000 series of line matrix printers for use throughout their Korean operations. With speeds of up to 2,000 lines per minute, the... [24 Sep 2004]
Printronix Helps Viking Freight Co. Run Faster
White Paper Viking now has a group of more than 500 Printronix line matrix printers distributed throughout its operations. The printer group includes pedestal and cabinet models of all Printronix line matrix speeds. [24 Sep 2004]
Technology Update on Fixed Position CCD Scanners
White Paper Industry organizations such as the Automotive Industry Action Group (AIAG) and the Electronics Industry Association (EIA) have already generated and adopted specifications for new 2D matrix codes. The CCD based scanner is the only means of reading... [25 Feb 2004]
