Title:
POWER ALLOCATION METHOD FOR MULTI-INPUT MULTI-OUTPUT VISIBLE LIGHT COMMUNICATION CHARACTERISTIC CHANNEL
Document Type and Number:
WIPO Patent Application WO/2022/228130
Kind Code:
A1
Abstract:
Disclosed in the present invention is a power allocation method for a multi-input multi-output visible light communication characteristic channel, comprising the following steps: step 1: obtaining a channel matrix by means of a transmitting end of a visible light communication system and performing singular value decomposition on the channel matrix; step 2: performing KKT condition analysis on channel capacity to obtain a power allocation value; step 3: ensuring that power parameters of Nt subchannels decrease gradually or are not increased, and removing the situation where a real number μ cannot be solved under a total power limitation condition; step 4: further removing, on the basis of step 3, the situation where when λ
k
<µv
k
/√Ɛ, ɸ
k
≠0, ensuring that the selected solutions all satisfy the power allocation value in step 2, and calculating the channel capacity under these solutions; and step 5: taking a maximum value of the channel capacity obtained in step 4 as the final channel capacity. The present invention has the characteristics of low complexity while retaining good performance of the visible light communication system, and has significant improvement in calculation time.
More Like This:
| JPH0648826 | [Title of Invention] Transmission / reception device |
| JPH0746185 | DENTAL TREATMENT SYSTEM |
| JP2000278768 | REMOTE CONTROL SYSTEM |
Inventors:
DANG JIAN (CN)
DENG QIAN (CN)
ZHANG ZAICHEN (CN)
WU LIANG (CN)
ZHU BINGCHENG (CN)
WANG LEI (CN)
DENG QIAN (CN)
ZHANG ZAICHEN (CN)
WU LIANG (CN)
ZHU BINGCHENG (CN)
WANG LEI (CN)
Application Number:
PCT/CN2022/086673
Publication Date:
November 03, 2022
Filing Date:
April 13, 2022
Export Citation:
Assignee:
UNIV SOUTHEAST (CN)
International Classes:
H04B10/116; H04B10/564
Foreign References:
| CN113162689A | 2021-07-23 | |||
| CN108270485A | 2018-07-10 |
Other References:
ZHAI YANRONG; CHI HAO; TONG JUN; XI JIANGTAO: "Capacity Maximized Linear Precoder Design for Spatial-Multiplexing MIMO VLC Systems", IEEE ACCESS, vol. 8, 26 March 2020 (2020-03-26), USA , pages 63901 - 63909, XP011783524, DOI: 10.1109/ACCESS.2020.2983517
BORUI YANG, LI ZHAO, YING LU, YU ZHOU: "Research on MIMO channel capacity for adaptive power allocation visible light", JOURNAL OF APPLIED OPTICS, vol. 41, no. 3, 15 May 2020 (2020-05-15), CN , pages 626 - 630, XP055980238, ISSN: 1002-2082, DOI: 10.5768/JAO202041.0308002
BORUI YANG, LI ZHAO, YING LU, YU ZHOU: "Research on MIMO channel capacity for adaptive power allocation visible light", JOURNAL OF APPLIED OPTICS, vol. 41, no. 3, 15 May 2020 (2020-05-15), CN , pages 626 - 630, XP055980238, ISSN: 1002-2082, DOI: 10.5768/JAO202041.0308002
Attorney, Agent or Firm:
NANJING RUIHONG PATENT & TRADEMARK AGENCY (ORDINARY PARTNERSHIP) (CN)
Download PDF: