Publication: Receive quadrature reflecting modulation for ris-empowered wireless communications
Program
KU-Authors
KU Authors
Co-Authors
Yuan, Jing
Wen, Miaowen
Li, Qiang
Alexandropoulos, George C.
Chen, Gaojie
Advisor
Publication Date
Language
English
Type
Journal Title
Journal ISSN
Volume Title
Abstract
In this paper, we propose a novel reconfigurable intelligent surface (RIS)-based modulation scheme, named RIS-aided receive quadrature reflecting modulation (RIS-RQRM), by resorting to the concept of spatial modulation. In RIS-RQRM, the whole RIS is virtually partitioned into two halves to create signals with only in-phase (I-) and quadrature (Q-) components, respectively, and each half forms a beam to a receive antenna whose index carries the bit information. Furthermore, we design a low-complexity and non-coherent detector for RIS-RQRM, which measures the maximum power and polarities of the I- and Q- components of received signals. Approximate bit error rate (BER) expressions are derived for RIS-RQRM over Rician fading channels. Simulation results show that RIS-RQRM outperforms the existing counterparts without I/Q index modulation in terms of BER in the low signal-to-noise ratio region.
Source:
IEEE Transactions on Vehicular Technology
Publisher:
Institute of Electrical and Electronics Engineers (IEEE)
Keywords:
Subject
Engineering, Electrical, Electronic, Telecommunications, Transportation Science, Technology