Channel Estimation with Optimal Power Controls in Amplify-and-Forward Relay Networks

Jo, Soonki; Choi, Jeung‐Yoon; Baek, Jong-Seob; Seo, Jong-Soo

doi:10.1109/wcl.2012.092612.120583

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Analysis Of Mse Performance1

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“…. As a result, the earlier assump- [23][24][25], we consider that E R equals to Â E 1 where Â represents a power ratio of relay relative to E 1 . Based on such assumptions, we define the SNRs for T 1 !…”

Section: Analysis Of Mse Performancementioning

confidence: 99%

Performance analysis of channel estimation in amplify‐and‐forward multi‐hop direct forwarding wireless networks

Choi

Baek²,

Han

et al. 2014

Wireless Communications

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In this paper, we study the performance of a training-based least square (LS) and linear minimum mean-square-error (LMMSE) channel estimation for both hop-by-hop and multi-hop direct forwarding wireless sensor networks over frequency-selective fading channels. Specifically, to investigate the properties of the channel estimation, we accomplish a theoretical analysis of MSE in terms of various link parameters. From the performance evaluation, we analytically present the effects of the number of hops on the MSE performance for channel estimations in both multi-hop networks. Interesting observations of MSE behaviors under various conditions are discussed, and the receiver complexity and channel equalization performance are also analyzed. Finally, through the computer simulations, the analytical results and detection performance are demonstrated.

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Section: Analysis Of Mse Performancementioning

confidence: 99%