Joint Optimal Training Sequence Design for CoMP Downlink System

JIA Guo-qing; SI Peng-bo; CHEN Shan-ji; WU Guo-qing; CHEN Chao

doi:10.3969/j.issn.0254-0037.2014.10.007

Journal of Beijing University of Technology > 2014 > 40(10): 1478-1483. > DOI: 10.3969/j.issn.0254-0037.2014.10.007

JIA Guo-qing, SI Peng-bo, CHEN Shan-ji, WU Guo-qing, CHEN Chao. Joint Optimal Training Sequence Design for CoMP Downlink System[J]. Journal of Beijing University of Technology, 2014, 40(10): 1478-1483. DOI: 10.3969/j.issn.0254-0037.2014.10.007

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Joint Optimal Training Sequence Design for CoMP Downlink System

1. College of Physics and Electronic Information Engineering, Qinghai University for Nationalities, Xining 810007, China;
2. College of Electronic Information and Control Engineering, Beijing University of Techno|ogy, Beijing 100124, China

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Received Date: October 09, 2013
Available Online: January 10, 2023

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In this paper, the Cramer-Rao Bound (CRB) to frequency offsets and channel impulse response estimation of Coordinate on Multiple Point downlink transmission system (CoMP) was derived for optimal training sequence design at first. However, the optimal sequence design criterion based on CRB was too complicated as the factor of channel impulse response and frequency offsets can't be eliminated in this criterion. So a sub-optimal design criterion based on minimum Mean Square Error (MSE) was proposed, then it was found out that the gauss sequence was the optimal sequence under this criterion.The numerical simulation verifies the theory analysis under the maximum likelihood (ML) estimation.The results show that the estimation performance approach CRB quiet well and gauss sequence outperform other sequences.
- coordinate on multiple point,
- downlink,
- training sequence design

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