Discrete RIS Enhanced Space Shift Keying MIMO System via Reflecting Beamforming Optimization
Fuente:
arXiv
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Preprint |
| Published: |
2024
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866915001591136256 |
|---|---|
| author | Zhu, Xusheng Wu, Qingqing Chen, Wen He, Xinyuan Xu, Lexi Zhang, Yaxin |
| author_facet | Zhu, Xusheng Wu, Qingqing Chen, Wen He, Xinyuan Xu, Lexi Zhang, Yaxin |
| contents | In this paper, a discrete reconfigurable intelligent surface (RIS)-assisted spatial shift keying (SSK) multiple-input multiple-output (MIMO) scheme is investigated, in which a direct link between the transmitter and the receiver is considered. To improve the reliability of the RIS-SSK-MIMO scheme, we formulate an objective function based on minimizing the average bit error probability (ABEP). Since the reflecting phase shift of RIS is discrete, it is difficult to address this problem directly. To this end, we optimize the RIS phase shift to maximize the Euclidean distance between the minimum constellations by applying the successive convex approximation (SCA) and penaltyalternating optimization method. Simulation results verify the superiority of the proposed RIS-SSK-MIMO scheme and demonstrate the impact of the number of RIS elements, the number of phase quantization bits, and the number of receive and transmit antennas in terms of reliability. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2411_00373 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Discrete RIS Enhanced Space Shift Keying MIMO System via Reflecting Beamforming Optimization Zhu, Xusheng Wu, Qingqing Chen, Wen He, Xinyuan Xu, Lexi Zhang, Yaxin Information Theory Signal Processing In this paper, a discrete reconfigurable intelligent surface (RIS)-assisted spatial shift keying (SSK) multiple-input multiple-output (MIMO) scheme is investigated, in which a direct link between the transmitter and the receiver is considered. To improve the reliability of the RIS-SSK-MIMO scheme, we formulate an objective function based on minimizing the average bit error probability (ABEP). Since the reflecting phase shift of RIS is discrete, it is difficult to address this problem directly. To this end, we optimize the RIS phase shift to maximize the Euclidean distance between the minimum constellations by applying the successive convex approximation (SCA) and penaltyalternating optimization method. Simulation results verify the superiority of the proposed RIS-SSK-MIMO scheme and demonstrate the impact of the number of RIS elements, the number of phase quantization bits, and the number of receive and transmit antennas in terms of reliability. |
| title | Discrete RIS Enhanced Space Shift Keying MIMO System via Reflecting Beamforming Optimization |
| topic | Information Theory Signal Processing |
| url | https://arxiv.org/abs/2411.00373 |