Title :
Noise enhanced detection in multiple-access environments
Author :
Bayram, Suat ; Gezici, Sinan
Author_Institution :
Elektrik ve Elektron. Muhendisligi Bulumu, Bilkent Univ., Ankara, Turkey
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 :
error statistics; multi-access systems; noise; signal detection; stochastic processes; error probability; multiple-access environment; noise enhanced detection; stochastic resonance; suboptimal detector; Detectors; Gaussian processes; Multiple access interference; Performance analysis; Stochastic resonance; Strontium; Testing; Upper bound; Working environment noise;
Conference_Titel :
Signal Processing and Communications Applications Conference, 2009. SIU 2009. IEEE 17th
Conference_Location :
Antalya
Print_ISBN :
978-1-4244-4435-9
Electronic_ISBN :
978-1-4244-4436-6
DOI :
10.1109/SIU.2009.5136548
