TY  - INPR
ID  - discovery10202855
KW  - Millimeter wave communication

KW  - 
Detectors

KW  - 
Indexes

KW  - 
Array signal processing

KW  - 
Wireless communication

KW  - 
Receiving antennas

KW  - 
Optimization

KW  - 
Modulation

KW  - 
Hardware

KW  - 
Costs
UR  - https://doi.org/10.1109/twc.2024.3511579
A1  - Zhu, J
A1  - Luo, Q
A1  - Chen, G
A1  - Xiao, P
A1  - Xiao, Y
A1  - Wong, KK
N2  - In this paper, we propose a fluid antenna (FA) enabled joint transmit and receive index modulation (FA-JTR-IM) transmission mechanism for reconfigurable intelligent surface (RIS)-assisted millimeter-wave (mmWave) communication systems. By integrating the methodologies of FA and IM, the proposed scheme achieves enhanced spectral efficiency (SE) while requiring only a single radio frequency (RF) chain at both the transmitter and receiver. The proposed scheme offers a low hardware cost and power consumption transmission mechanism for the RIS-aided mmWave communication systems. Specifically, the encoding of information bits encompasses not only the modulated symbol but also the indices of transmit FA positions and receive antennas. To achieve a reliability-complexity trade-off, two types of detectors are introduced for the proposed FA-JTR-IM scheme, including the optimal maximum likelihood (ML) detector and two-step sequential (TSS) detector. Based on the ML detector, we derive the expression for the conditional pair-wise error probability of the proposed FA-JTR-IM scheme. Additionally, we provide the closed-form expressions for the unconditional PEP under the finite-path and infinite-path channel conditions, respectively. Simulation results demonstrate the superiority of the proposed FA-JTR-IM scheme in terms of error performance over its conventional benchmark schemes under the same SE condition.
AV  - public
JF  - IEEE Transactions on Wireless Communications
TI  - Fluid Antenna Empowered Index Modulation for RIS-aided mmWave Transmissions
Y1  - 2024/12/11/
PB  - Institute of Electrical and Electronics Engineers (IEEE)
N1  - This version is the author accepted manuscript. For information on re-use, please refer to the publisher?s terms and conditions.
ER  -