Semi-blind channel estimation of MIMO-OFDM systems based on RBF network
Semi-blind channel estimation of MIMO-OFDM systems based on RBF network
- Author(s): Hao jie and Yang ling
- DOI: 10.1049/cp.2011.0872
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- Author(s): Hao jie and Yang ling Source: IET International Communication Conference on Wireless Mobile and Computing (CCWMC 2011), 2011 p. 187 – 191
- Conference: IET International Communication Conference on Wireless Mobile and Computing (CCWMC 2011)
- DOI: 10.1049/cp.2011.0872
- ISBN: 978-1-84919-505-8
- Location: Shanghai, China
- Conference date: 14-16 Nov. 2011
- Format: PDF
A Semi-blind channel estimation method of MIMO-OFDM systems based on RBF (Radial Basis Function) network is proposed in this paper, with the improved semi-blind cost function based on LS criterion, and using RBF network to substitute the function iteration. Then makes use of the improved PSO algorithm to optimize the parameter of RBF network, we also use the improved network to estimate the channel response. Finally, the simulation results show the advantages of RBF network when processing the problem of channel estimation.
Inspec keywords: radial basis function networks; MIMO communication; channel estimation; particle swarm optimisation; OFDM modulation
Subjects: Modulation and coding methods; Communication channel equalisation and identification; Optimisation techniques; Radio links and equipment
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