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

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

References

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