Achievable data rates and power allocation for frequency-selective fading relay channels with imperfect channel estimation

Name: Achievable data rates and power allocation for frequency-selective fading relay channels with imperfect channel estimation
Author: Ding, Y., Uysal, Murat

İsim	Achievable data rates and power allocation for frequency-selective fading relay channels with imperfect channel estimation
Yazar	Ding, Y., Uysal, Murat
Basım Tarihi:	2012-12
Basım Yeri	- Springer Science+Business Media
Konu	Achievable rate, Amplify-and-forward relaying, Channel estimation, Power allocation, OFDM
Tür	Süreli Yayın
Dil	İngilizce
Dijital	Evet
Yazma	Hayır
Kütüphane:	Özyeğin Üniversitesi
Demirbaş Numarası	1687-1472
Kayıt Numarası	05b180d1-44c7-4f91-90a8-97935a772fab
Lokasyon	Electrical & Electronics Engineering
Tarih	2012-12
Notlar	Due to copyright restrictions, the access to the full text of this article is only available via subscription.
Örnek Metin	In this article, we investigate the information-theoretical performance of a cooperative orthogonal frequency division multiplexing (OFDM) system with imperfect channel estimation. Assuming the deployment of training-aided channel estimators, we derive a lower bound on the achievable rate for the cooperative OFDM system with amplify-and-forward relaying over frequency-selective Rayleigh fading channels. The bound is later utilized to allocate power among the training and data transmission phases. Numerical results demonstrate that the proposed power allocation scheme brings between 5 and 19% improvement depending on the level of signal-to-noise ratio and relay locations.
Cilt	372

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Achievable data rates and power allocation for frequency-selective fading relay channels with imperfect channel estimation

Yazar Ding, Y., Uysal, Murat

Basım Tarihi 2012-12

Basım Yeri - Springer Science+Business Media

Konu Achievable rate, Amplify-and-forward relaying, Channel estimation, Power allocation, OFDM

Tür Süreli Yayın

Dil İngilizce

Dijital Evet

Yazma Hayır

Kütüphane Özyeğin Üniversitesi

Demirbaş Numarası 1687-1472

Kayıt Numarası 05b180d1-44c7-4f91-90a8-97935a772fab

Lokasyon Electrical & Electronics Engineering

Tarih 2012-12

Notlar Due to copyright restrictions, the access to the full text of this article is only available via subscription.

Örnek Metin In this article, we investigate the information-theoretical performance of a cooperative orthogonal frequency division multiplexing (OFDM) system with imperfect channel estimation. Assuming the deployment of training-aided channel estimators, we derive a lower bound on the achievable rate for the cooperative OFDM system with amplify-and-forward relaying over frequency-selective Rayleigh fading channels. The bound is later utilized to allocate power among the training and data transmission phases. Numerical results demonstrate that the proposed power allocation scheme brings between 5 and 19% improvement depending on the level of signal-to-noise ratio and relay locations.

Cilt 372