Noise enhanced detection in multiple-access environments

Author

Bayram, Suat ; Gezici, Sinan

Author_Institution

Elektrik ve Elektron. Muhendisligi Bulumu, Bilkent Univ., Ankara, Turkey

fYear

2009

fDate

9-11 April 2009

Firstpage

924

Lastpage

927

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/SIU.2009.5136548

Filename

5136548