Zero-forcing Precoder: A Special Constructive Interference Precoder for PSK Signals

被引：0
|
作者：
Ding, Yanwu [1 ]
Khanh Pham [2 ]
机构：
[1] Wichita State Univ, Dept Elect Engn & Comp Sci, 1845 N Fairmount, Wichita, KS 67260 USA
[2] Air Force Res Lab, Albuquerque, NM USA
来源：
CONFERENCE RECORD OF THE 2019 FIFTY-THIRD ASILOMAR CONFERENCE ON SIGNALS, SYSTEMS & COMPUTERS | 2019年
关键词：
Constructive interference; QoS; zero-forcing; precoder; symbol-level; block-level; DOWNLINK;
D O I：
10.1109/ieeeconf44664.2019.9048701
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
Recently, constructive interference precoders have been considered for downlink communication systems to utilize the multiuser interference constructively. Such precoders are normally obtained by solving constrained optimization problems at each symbol period. We demonstrate that there exists an analytic solution to a constructive interference precoder under the constraint of QoS for phase-shift keying (PSK) symbols. In this case, the computational cost is saved for the precoder design without solving the optimization problem.
引用
收藏
页码：717 / 720
页数：4
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