Channel Estimation for RIS aided MISO System Akilli Yansitici Yüzey Destekli Çok-Girişli Tek-Çikişli Sistemde Kanal Kestirimi
31st IEEE Conference on Signal Processing and Communications Applications, SIU 2023, İstanbul, Türkiye, 5 - 08 Temmuz 2023, (Tam Metin Bildiri)
- Yayın Türü: Bildiri / Tam Metin Bildiri
- Doi Numarası: 10.1109/siu59756.2023.10224032
- Basıldığı Şehir: İstanbul
- Basıldığı Ülke: Türkiye
- Anahtar Kelimeler: channel estimation, minimum mean squared error estimator, minimum variance unbiased estimator, reflective intelligent surfaces
- Maltepe Üniversitesi Adresli: Evet
Özet
This paper considers the channel estimation of a single user in a MISO system with an intelligent reflecting surface (IRS). The performances of the minimum variance unbiased (MVU) and minimum mean square error (MMSE) estimators using the discrete Fourier transform activation pattern for the IRS, updated at every symbol interval, are compared. Numerical results show that the MMSE estimator provides over 10 dB SNR improvement compared to the MVU estimator.