Τίτλος:
Receive Quadrature Reflecting Modulation for RIS-Empowered Wireless Communications
Γλώσσες Τεκμηρίου:
Αγγλικά
Περίληψη:
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. © 2021 IEEE.
Συγγραφείς:
Yuan, J.
Wen, M.
Li, Q.
Basar, E.
Alexandropoulos, G.C.
Chen, G.
Περιοδικό:
IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY
Εκδότης:
Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Λέξεις-κλειδιά:
Bit error rate; Fading channels; Interlocking signals; Receiving antennas; Signal to noise ratio, Coherent detectors; Index modulation; Low signal-to-noise ratio; Modulation schemes; Received signals; Rician fading channel; Spatial modulations; Wireless communications, Modulation
DOI:
10.1109/TVT.2021.3073161
