Simplified precoder design for MIMO systems with receive correlation in ricean channels
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
Author(s)
Related Research Unit(s)
Detail(s)
Original language | English |
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Article number | 6164221 |
Pages (from-to) | 263-266 |
Journal / Publication | IEEE Signal Processing Letters |
Volume | 19 |
Issue number | 5 |
Publication status | Published - May 2012 |
Link(s)
Abstract
In this letter, a simplified algorithm for designing the precoder at the transmitter for multiple antenna systems with receive correlation over Ricean fading channels is proposed. From the common property of the asymptotic solutions of high and low SNR's, a simple power allocation structure is proposed, which greatly reduce the computational complexity in comparison with the existing precoder schemes. For the case of two transmit antennas, it becomes an optimal precoder. A simple enhancement procedure, which refines the power allocation to further improve the symbol error rate (SER) performance, is also derived. Unlike most of the existing precoder schemes which need expensive computational complexity but cannot guarantee the iterative algorithms to converge, the proposed algorithm is computationally efficient and can converge to the solution fast. Simulation results show that the proposed scheme achieves SER performance close to that of the optimal one, but requires less computational complexity with fast convergence. © 2006 IEEE.
Research Area(s)
- Correlated Ricean channel, multiple-input multiple-output (MIMO) system, space-time code, transmit precoding
Citation Format(s)
Simplified precoder design for MIMO systems with receive correlation in ricean channels. / Zhang, Lin; Luo, Zhen; Leung, Shu-Hung et al.
In: IEEE Signal Processing Letters, Vol. 19, No. 5, 6164221, 05.2012, p. 263-266.
In: IEEE Signal Processing Letters, Vol. 19, No. 5, 6164221, 05.2012, p. 263-266.
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review