Zhu, J;
Luo, Q;
Chen, G;
Xiao, P;
Xiao, Y;
Wong, KK;
(2024)
Fluid Antenna Empowered Index Modulation for RIS-aided mmWave Transmissions.
IEEE Transactions on Wireless Communications
10.1109/TWC.2024.3511579.
(In press).
Preview |
PDF
Fluid_Antenna_Empowered_Index_Modulation_for_RIS-aided_mmWave_Transmissions.pdf - Accepted Version Download (4MB) | Preview |
Abstract
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.
| Type: | Article |
|---|---|
| Title: | Fluid Antenna Empowered Index Modulation for RIS-aided mmWave Transmissions |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1109/TWC.2024.3511579 |
| Publisher version: | https://doi.org/10.1109/twc.2024.3511579 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Millimeter wave communication , Detectors , Indexes , Array signal processing , Wireless communication , Receiving antennas , Optimization , Modulation , Hardware , Costs |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10202855 |
Loading...
Loading...Loading...Loading...Archive Staff Only
 |
View Item |
