A bandwidth efficient channel estimation algorithm for MIMO-SCFDE
Jiun Siew,Justin P. Coon,Robert J. Piechocki,Andrew R Nix,Mark A Beach,Simon Armour,JP McGeehan +6 more
- 01 Oct 2003
- Vol. 2, pp 1142-1146
TL;DR: In this article, the authors propose a channel estimation method for single-carrier MIMO systems with frequency-domain equalization/detection, which is extremely bandwidth efficient in that the total training overhead required to obtain full CSI is just one block period.
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Abstract: This paper proposes a novel method for channel estimation in a single-carrier MIMO system with frequency-domain equalization/detection. To this end, we construct novel short MIMO training sequences that have a constant envelope in the time domain to preclude the peak-to-mean power problem encountered in many systems that utilize the frequency domain for data recovery. Simultaneously, the spectrum in the frequency domain is flat except for a grid of nulls for predefined frequency tones. Such construction allows us to interpolate over nulled tones to recover the full set of MIMO channel state information (CSI). The interpolation is performed by a specially crafted algorithm which iteratively reconstructs the full CSI by a series of FFT and IFFT operations. This algorithm is extremely bandwidth efficient in that the total training overhead required to obtain full CSI is just one block period.
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Citations
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Method and apparatus for pilot multiplexing in a wireless communication system
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TL;DR: In this article, a transmitter station generates multiple pilot sequences for multiple transmit antennas, with each pilot sequence comprising pilot symbols sent in the time domain on a different set of subcarriers.
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Optimal training sequences for channel estimation in cyclic-prefix-based single-carrier systems with transmit diversity
TL;DR: This work investigates a new class of training sequences that are optimal for least squares (LS) channel estimation in systems employing transmit diversity and single-carrier (SC) modulation with a cyclic prefix (CP) extension that are orthogonal in the frequency domain.
A channel estimation algorithm for MIMO-SCFDE
Jiun Siew,Justin P. Coon,Robert J. Piechocki,A. Dowler,Andrew R Nix,Mark A Beach,Simon Armour,JP McGeehan +7 more
TL;DR: A novel method for channel estimation in a single-carrier multiple input-multiple output (MIMO) system with frequency-domain equalization/detection is proposed and results show that the algorithm performs identically to other proposed LS techniques.
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