Channel estimation and symbol detection for AF relay system based on combined pilot. Abstract: Obtaining the channel state information (CSI) of the cascaded ...
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May 29, 2019 · A study on the joint channel and symbol estimation issue is provided for two hop relay networks which employ the amplify-and-forward (AF) relaying approach.
Channel estimation is an important part of any wireless communications systems. Channel estimation using known pilots has been well studied for relaying systems ...
In this paper, we propose a pilot based channel estimation technique in two-way relay networks. We propose to transmit a pilot symbol together with the data ...
Mar 1, 2018 · In the OFDM-based transmission of AF relaying system, most channel estimation schemes are aimed at obtaining the cascaded channel [7–9] and ...
Jun 28, 2010 · In this paper, we consider an AF relaying system without direct channel between the source node and the destination node, ...
Nov 17, 2014 · In this paper, we address the channel estimation problem for multiple-input multiple-output (MIMO) multi-relay systems exploiting ...
In wireless communications, channel estimation is necessary for coherent symbol detec- tion. This thesis considers a network which consists of two ...
Jan 30, 2017 · To assist in the estimation of the individual channels, we adopt a superimposed training strategy at the relay. We have design the pilot vectors ...
This work proves that a partially-blind maximum-likelihood estimator approaches the true channel with high probability at high signal-to-noise ratio (SNR) ...