| 研究課題/領域番号 |
23K13333
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| 研究機関 | 静岡大学 |
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研究代表者 |
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| 研究期間 (年度) |
2023-04-01 – 2025-03-31
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| キーワード | VLC / Physical layer security / Constellation shaping / Energy efficiency |
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| 研究実績の概要 |
In the first year of the research project, we studied the designs of probablistic constellation shaping (PCS) for enhacing the performance of physical layer security (PLS) in visible light communications (VLC). We also investigated the problem of energy effiency in the context of PLS in VLC systems.
1. For single-input single-output (SISO) VLC systems, we proposed a PCS scheme for pulse amplitude modulation (PAM) that maximizes the secrecy capacity while ensuring the reliability of the channel of the legitimate user.
2. For multiple-input single-output (MISO) VLC systems with the same objectives mentiond in the SISO case, we proposed a joint design of PCS and precoding.
3. For MISO VLC systems, we proposed several precoding and aritificial noise schemes to maximize the energy efficiency.
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| 現在までの達成度 (区分) |
現在までの達成度 (区分)
1: 当初の計画以上に進展している
理由
The progress of the first year is smoothier than initialy planned as not only we addressed the design of PCS for performance improvement of PLS but also the design of precoding and artifical noise for enhancing the energy efficiency in the context of PLS.
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| 今後の研究の推進方策 |
In the second year of the research project, we plan to investigate the design of PCS schemes to improve the energy efficency of PLS in VLC systems. In particular, we aim to tackle the following two problems.
1. The optimal probabilistic constellation for the case of SISO systems and the optimal joint probabilistic constellation and precoding for the case of MISO systems.
2. We consider a hybrid VLC/RF (radio frequency) system where VLC is used for the downlink whereas RF is used for the uplink. We then study the energy efficiency of such a system considering the constraint imposed by PLS on the uplink.
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| 次年度使用額が生じた理由 |
There are two reasons for incurring amount to be used in the next fiscal year. Firstly, the purchase of new research equiment was not necesarry in the first year since the equipment of the lab is already enough for the current number of students. Secondly, the payment of publication fee was not high since several papers are not under review.
In the next fiscal year, the incurring amount will be used to purchase research equipment for new coming students and pay the publication fee of several papers which are currently under review.
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