Name
Title | ||
|---|---|---|
Superimposed training design based on Bayesian optimisation for channel estimation in two-way relay networks |
Abstract | ||
|---|---|---|
In this study, the superimposed training strategy is introduced into orthogonal frequency division multiplexing-modulated amplify-and-forward two-way relay network (TWRN) to perform two-hop transmission-compatible individual channel estimation. Through the superposition of an additional training vector at the relay under power allocation, the separated source-relay channel information can be directly obtained at the destination and then used to estimate the channels. The closed-form Bayesian Crame-r-Rao lower bound (CRLB) is derived for the estimation of block-fading frequency-selective channels with random channel parameters, and orthogonal training vectors from the two source nodes are required to keep the Bayesian CRLB simple because of the self-interference in the TWRN. A set of optimal training vectors designed from the Bayesian CRLB are applied in an iterative linear minimum mean-square-error channel estimation algorithm, and the mean-square-error performance is provided to verify the Bayesian CRLB results. |
Year | DOI | Venue |
|---|---|---|
2012 | 10.1049/iet-com.2012.0418 | IET Communications |
Keywords | Field | DocType |
relay networks (telecommunication),optimisation,bayesian optimisation,bayesian cramer-rao lower bound,training vector,twrn,bayes methods,fading channels,ofdm modulation,orthogonal frequency division multiplexing,block-fading frequency-selective channels,amplify-and-forward two-way relay network,mean-square-error channel estimation,power allocation,superimposed training design,crlb,amplify and forward communication,vectors,mean square error methods | Cramér–Rao bound,Superposition principle,Frequency divider,Upper and lower bounds,Algorithm,Communication channel,Real-time computing,Statistics,Mathematics,Orthogonal frequency-division multiplexing,Relay,Bayesian probability | Journal |
Volume | Issue | ISSN |
6 | 18 | 1751-8628 |
Citations | PageRank | References |
4 | 0.43 | 13 |
Authors | ||
5 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Xiaoyan Xu | 1 | 4 | 0.43 |
| Jianjun Wu | 2 | 66 | 12.22 |
| Shubo Ren | 3 | 22 | 3.66 |
| Lingyang Song | 4 | 3674 | 238.94 |
| Haige Xiang | 5 | 154 | 30.35 |