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Title: Partial and analog feedback for MISO precoding systems
Authors: Le Ruyet, Didier
Özbek, Berna
Keywords: Input output programs
Analog feedbacks
Normalized channel vectors
Analog computers
Feedback control
Issue Date: 2007
Publisher: Institute of Electrical and Electronics Engineers Inc.
Source: Le Ruyet, D., and Özbek, B. (2007). Partial and analog feedback for MISO precoding systems. IEEE International Conference on Communications, 2767-2772. doi:10.1109/ICC.2007.460
Abstract: We consider a multiple input single output antenna system with a feedback link. While most of the previous works have considered perfect feedback channels, in this paper, we evaluate the impact of a noisy feedback channel on the quality and the performance of the transmission. We compare the finite rate feedback scheme with the analog feedback schemes where the channel parameters are transmitted without quantization over the uplink channel. Two analog feedback schemes are considered : the feedback of the channel vector and the feedback of the normalized channel vector. We provide bounds on the performance and give numerical results. We have shown that at low to medium uplink SNR the analog feedback of the normalized channel vector outperforms the analog feedback of the channel vector. Depending on the range of uplink SNR, quantized feedback can perform poorlz y compared to analog feedback.
Description: 2007 IEEE International Conference on Communications, ICC'07; Glasgow, Scotland; United Kingdom; 24 June 2007 through 28 June 2007
ISSN: 0536-1486
Appears in Collections:Electrical - Electronic Engineering / Elektrik - Elektronik Mühendisliği
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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