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Optical wireless scattering channel estimation for photon-counting and photomultiplier tube receivers

Optical wireless scattering channel estimation for photon-counting and photomultiplier tube receivers
Optical wireless scattering channel estimation for photon-counting and photomultiplier tube receivers
Channel estimation is conceived for optical wireless scattering channels associated with laser diode transmitters and photon-counting/photomultiplier tube receivers. The proposed channel estimation approach consists of two stages, namely, of the estimation of the channel tap second-order moments followed by the estimation of the channel taps based on the estimate of second-order moments. In the first stage, we provide the general framework of the moment estimation complemented by the conception of an estimation approach based on a sparse pilot structure, as well as by the analysis of the estimation error. We also propose a novel sparse pilot design as well as the associated low-complexity channel estimation, and prove the optimality of the proposed channel estimation. In the second stage, we conceive the associated channel tap estimation based on the eigenvalue decomposition of the matrix of estimated second-order moments, and analyze the associated performance. It is shown that as the length of the pilot sequence tends to infinity, the probability of having an estimation distortion above a certain threshold can be reduced arbitrarily small. Simulation results show that the proposed sparse pilot sequence can lead to a smaller estimation error than the pilot design using random 0-1 bits.
4749-4763
Gong, Chen
9c82ac6c-0541-4ba5-8941-19ec6fdd0898
Zhang, Xiaoke
682727f1-74c7-4b7a-a64c-3b8082350dc6
Xu, Zhengyuan
3fd22483-8a16-4a84-895d-1f73078e3827
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1
Gong, Chen
9c82ac6c-0541-4ba5-8941-19ec6fdd0898
Zhang, Xiaoke
682727f1-74c7-4b7a-a64c-3b8082350dc6
Xu, Zhengyuan
3fd22483-8a16-4a84-895d-1f73078e3827
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1

Gong, Chen, Zhang, Xiaoke, Xu, Zhengyuan and Hanzo, Lajos (2016) Optical wireless scattering channel estimation for photon-counting and photomultiplier tube receivers. IEEE Transactions on Communications, 64 (11), 4749-4763. (doi:10.1109/TCOMM.2016.2602344).

Record type: Article

Abstract

Channel estimation is conceived for optical wireless scattering channels associated with laser diode transmitters and photon-counting/photomultiplier tube receivers. The proposed channel estimation approach consists of two stages, namely, of the estimation of the channel tap second-order moments followed by the estimation of the channel taps based on the estimate of second-order moments. In the first stage, we provide the general framework of the moment estimation complemented by the conception of an estimation approach based on a sparse pilot structure, as well as by the analysis of the estimation error. We also propose a novel sparse pilot design as well as the associated low-complexity channel estimation, and prove the optimality of the proposed channel estimation. In the second stage, we conceive the associated channel tap estimation based on the eigenvalue decomposition of the matrix of estimated second-order moments, and analyze the associated performance. It is shown that as the length of the pilot sequence tends to infinity, the probability of having an estimation distortion above a certain threshold can be reduced arbitrarily small. Simulation results show that the proposed sparse pilot sequence can lead to a smaller estimation error than the pilot design using random 0-1 bits.

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More information

Accepted/In Press date: 16 August 2016
e-pub ahead of print date: 25 August 2016
Published date: November 2016

Identifiers

Local EPrints ID: 404415
URI: http://eprints.soton.ac.uk/id/eprint/404415
PURE UUID: 2952ab55-5ca5-4bad-9792-2618ef3d3ed5
ORCID for Lajos Hanzo: ORCID iD orcid.org/0000-0002-2636-5214

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Date deposited: 09 Jan 2017 10:15
Last modified: 18 Mar 2024 02:35

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Contributors

Author: Chen Gong
Author: Xiaoke Zhang
Author: Zhengyuan Xu
Author: Lajos Hanzo ORCID iD

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