Applied Mechanics and Materials · 2012 · 13 citations · 5 references
EngineeringComputer EngineeringElectrical EngineeringAnalog ElectronicsDigital CommunicationWireless CommunicationsChannel CodingDigital Signal ProcessingError Control CodingError CorrectionError DetectionError-correcting CodesAnalog Signal ConditioningBit Error RateBit-error Rate AnalysisChannel CharacterizationError Correction CodesError Detection CodesNoise SourcesSignal-to-noise Ratio
This paper presents a physical channel emulator solution for applications such as Bit Error Rate Testing of Error Correcting Codes. The solution relies on an analog White Gaussian Noise Generator coupled additively with an analog data signal to emulate the communication channel. This is interfaced to a computer through a USB connection, allowing the use of programs in different environments, such as Matlab and Labview. This solution can allow different types of channels to be emulated and with different noise sources. A software-based method to measure Signal to Noise Ratio and to characterize the channel is also presented. The system has been validated using a Matlab interface implementing multiple error correcting codes and showed good agreement with the theoretical model.
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Hardware Discrete Channel Emulator
Emmanuel Boutillon, Yangyang Tang, Cédric Marchand et al. · 2010 · 12 citations · Full text
Engineering, Computer Engineering, Electrical Engineering +13