Pilot Tones Optimization Using Artificial Bee Colony Algorithm for MIMO-OFDM Systems
Yükleniyor...
Tarih
2013
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Springer
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
How to design the pilot tones that are used in channel estimation has a significant effect on the estimation performance. To achieve good performance in least square (LS) algorithm, we propose the artificial bee colony (ABC) algorithm for optimizing the placement of pilot tones in MIMO-OFDM systems. We also derive the upper bound of mean square error of LS estimation with the help of Gerschgorin disc theorem for fitness function of ABC algorithm. The results show that designing pilot tones using the ABC algorithm outperforms other considered placement strategies in terms of high system performance and low computational complexity.
Açıklama
Anahtar Kelimeler
MIMO-OFDM, Channel estimation, ABC algorithm, LS algorithm
Kaynak
Wireless Personal Communications
WoS Q Değeri
Q3
Scopus Q Değeri
Q2
Cilt
71
Sayı
1
Künye
closedAccess
