In this paper, we propose a scaled cyclic delay diversity (SCDD) based precoding for coded multiple-input multiple-output (MIMO) orthogonal frequency-division multiplexing (OFDM) systems. In order to improve the bit error rate (BER) performance, the proposed precoding reduces the maximum correlation of the precoded channel in frequency domain. In addition, a decision criterion for the scaling factor is suggested by analyzing the bit error probability of repetition codes, convolutional codes, and turbo codes. We present the simulation results for the BER performance to verify the effect of proposed SCDD-based precoding.
Bibliographical noteFunding Information:
Manuscript received December 12, 2018; accepted March 14, 2019. Date of publication April 9, 2019; date of current version June 18, 2019. This work was supported by DMC R&D Center, Samsung Electronics, Company, Ltd. under Grant IO 150605-03060-01. The review of this paper was coordinated by Prof. W. A. Krzymien. (Corresponding author: Chungyong Lee.) S. Lee and C. Lee are with the School of Electrical and Electronic Engineering, Yonsei University, Seoul 03722, South Korea (e-mail:,sanggeun.lee@ yonsei.ac.kr; firstname.lastname@example.org).
All Science Journal Classification (ASJC) codes
- Automotive Engineering
- Aerospace Engineering
- Electrical and Electronic Engineering
- Applied Mathematics