Detection of Antipodal Signals Under Skewed Alpha-Stable Noise
Öz
This study analyses performance of digital communication system having baseband binary phase shift keying modulation under asymmetric non-Gaussian noise. Correspondingly, the problem is characterised as antipodal signal detection where skewed stable distribution is used as asymmetric non-Gaussian noise exhibiting impulsive behaviour. The performance of the communication system is expressed as a function of error probability with respect to noise parameters. It is shown that the skewness of the channel noise results in degradation of error probability at low signal to noise ratio. Also, the effect of skewness is more apparent when the impulsiveness of the noise increased. As the contribution, any receiver design to compensate the asymmetric behaviour of the channel noise can be used to enhance the detection accuracy since the error performance gets worse while departing from symmetric behaviour of the noise under the same impulsiveness. Additionally, the detection performance is analysed by receiver operating characteristic under the skewed stable noise environment. According to findings, probability of detection can be tuned and locally increased with respect to the false alarm probability depending on the sign of the skewness.
Anahtar Kelimeler
Kaynakça
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Ayrıntılar
Birincil Dil
İngilizce
Konular
Mühendislik
Bölüm
Araştırma Makalesi
Yazarlar
Mehmet Emre Çek
*
0000-0002-0230-3529
Türkiye
Özge Şentürk
Bu kişi benim
0000-0002-9018-9059
Yayımlanma Tarihi
21 Mayıs 2019
Gönderilme Tarihi
19 Kasım 2018
Kabul Tarihi
7 Ocak 2019
Yayımlandığı Sayı
Yıl 2019 Cilt: 21 Sayı: 62