Noise enhanced detection in multiple-access environments
Author
Bayram, Suat
Gezici, Sinan
Date
2009Source Title
Proceedings of the IEEE 17th Signal Processing and Communications Applications Conference, SIU 2009
Publisher
IEEE
Pages
924 - 927
Language
Turkish
Type
Conference PaperItem Usage Stats
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Abstract
Under certain conditions, addition of noise can enhance performance of suboptimal detectors, which is called the stochastic resonance (SR) effect. In this paper, the effects of SR are investigated for conventional detectors in the presence of multiple-access interference. First, conditions under which probability of error performance of the detector can or cannot be improved are obtained. Then, performance of noise enhanced detectors are analyzed, and an upper bound on the amount of performance improvement that can be obtained via SR is derived. Numerical examples are presented to support the theoretical analysis.
Keywords
Conventional detectorsEnhanced detectors
Noise-enhanced detection
Performance improvements
Probability of errors
Stochastic resonances
Upper bound
Detectors
Signal processing
Multiple access interference