상세 보기
Low Complexity Precoder with Exploration for 1-bit MU-MISO: QAM constellations
- Hong, Sungweon;
- Park, Sungyeal;
- Cho, Yunseong;
- Hong, Songnam
Citations
WEB OF SCIENCE
0Citations
SCOPUS
0초록
We study the construction of a transmit signal for downlink multi-user multiple-input single-output (MU-MISO) systems with cost-effective 1-bit digital-to-analog converters (DACs). In our earlier work, this challenging problem was formulated as a mixed integer linear programming (MILP) and solved through conventional LP relaxation. In this paper, we present a two-step iterative algorithm with an elegant performance-complexity tradeoff. The proposed algorithm can approach the performance of the LP-based method while reducing the computational complexity by 1/ log(Nt), where Nt is the number of transmit antennas. Via simulations, we demonstrate the effectiveness of the proposed algorithm.
키워드
1-bit DAC; downlink precoding; massive MISO; mixed integer linear programming; Analog to digital conversion; Digital to analog conversion; Integer linear programming; Integer programming; Linear programming; Quadrature amplitude modulation; Quadrature phase shift keying
- 제목
- Low Complexity Precoder with Exploration for 1-bit MU-MISO: QAM constellations
- 저자
- Hong, Sungweon; Park, Sungyeal; Cho, Yunseong; Hong, Songnam
- 발행일
- 2024-09
- 유형
- Proceedings Paper
- 저널명
- 2024 IEEE 25TH INTERNATIONAL WORKSHOP ON SIGNAL PROCESSING ADVANCES IN WIRELESS COMMUNICATIONS, SPAWC 2024
- 페이지
- 891 ~ 895