Simplified precoder design for MIMO systems with receive correlation in ricean channels

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

11 Scopus Citations
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Detail(s)

Original languageEnglish
Article number6164221
Pages (from-to)263-266
Journal / PublicationIEEE Signal Processing Letters
Volume19
Issue number5
Publication statusPublished - May 2012

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.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review