A Novel Pilot Expansion Approach for MIMO Channel Estimation

  • Ming Fei Siyau
    School of Engineering & Design, London South Bank University, London SE1 0AA, UK
  • Tiancheng Li
    Northwestern Polytechnical University t.c.li[at]mail.nwpu.edu.cn
  • Jonathan Loo
    School of Science & Technology, Middlesex University, London NW4 4BT, UK

Abstract

A training-based MIMO channel estimation scheme is presented to operate in severe frequency and time selective fading channels. Besides the new pilot bits designed from the ‘Paley-Hadamard’ matrix to exploit its orthogonal and ‘Toeplitz-like’ structures and minimising its pilot length, a novel pilot expansion technique is proposed to estimate the length of the channel impulse response, by flexibly extending its pilot length as required in order to capture the number of multipath existed within the MIMO channel. The pilot expansion can also help to deduce the initial channel variation and its Doppler rate which can be subsequently applied for MIMO channel tracking using decision feedback Kalman filter during the data payload.
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Siyau, M. F., Li, T., & Loo, J. (2015). A Novel Pilot Expansion Approach for MIMO Channel Estimation. ADCAIJ: Advances in Distributed Computing and Artificial Intelligence Journal, 3(3), 12–20. https://doi.org/10.14201/ADCAIJ2014331220

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Author Biography

Tiancheng Li

,
Northwestern Polytechnical University
I received my B. Eng. and B. Mgmt. degrees from Harbin Engineering University, Harbin, China, both in 2008, in Mechatronics Engineering and Business Administration, respectively, and my PhD degree in Electrical and Electronic Engineering from London South Bank University, UK, in 2013. I have started the successive postgraduate and doctoral program in Mechatronics Engineering in Northwestern Polytechnical University (NPU), China, since September 2008. Presently, I am a PhD candidate in Mechatronics Engineering in NPU (supposed to finish by 2014)
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