Performance Analysis of Alamouti Space Time Block Coding over Weibull Fading Channel in MIMO Systems

Year 2019, Volume: 7 Issue: 3, 2010 - 2018, 31.07.2019

Abdülkadir Can Çakır , Halil Yiğit , Kerem Küçük

https://doi.org/10.29130/dubited.481091

Abstract

Keywords

Alamouti Space Time Block Coding (STBC), Weibull Fading Channel, Multiple Input Multiple Output (MIMO) antennas

MIMO Sistemlerde Alamouti Uzay Zaman Blok Kodlamanın Weibull Sönümleme Kanalı Üzerindeki Performans Analizi

Abstract

Kablosuz haberleşme sistemlerinin
performansı kanal sönümlemelerinden etkilenmektedir. Yeni nesil kablosuz sistemlerin
gelişimiyle beraber güvenilir bağlantı ihtiyaçları da artmaktadır. Kablosuz
iletişimdeki en büyük zorluk, sönümlemelerden en az etkilenen kesintisiz
iletişimin gerçekleştirilmesidir. Çeşitleme teknikleri ile çoklu anten
teknolojileri bu noktada yardımcı olmaktadır. Bu çalışmada, alıcı ve vericide
kullanılan Çoklu Giriş Çoklu Çıkış (MIMO) anten yapısı, hem iç hem de dış
ortamdaki radyo yayılım ortamını modelleyen Weibull sönümleme kanalı ve İkili
Faz Kaydırmalı Anahtarlama (BPSK) modülasyonu altında vericide çeşitleme
tekniklerinden olan Alamouti Uzay Zaman Blok Kodlamanın (STBC) performansı
analiz edilmiştir. Weibull sönümleme kanalında çoklu anten ve STBC
kullanılmasının, Bit Hata Oranını (BER) azalttığı ve sistem performansını arttırdığı
gözlemlenmiştir.

Keywords

Alamouti Uzay Zaman Blok Kodlama (STBC), Weibull Sönümleme Kanalı, Çoklu Giriş Çoklu Çıkış (MIMO) antenler

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