Pairwise Coded mCAP with Chaotic Dual-Mode Index Modulation for Secure Bandlimited VLC Systems

被引:10
作者
Nie, Yungui [1 ]
Zhang, Wei [2 ]
Yang, Yanbing [3 ]
Deng, Xiong [4 ]
Liu, Min [1 ]
Chen, Chen [1 ]
机构
[1] Chongqing Univ, Sch Microelect & Commun Engn, Chongqing 400044, Peoples R China
[2] China Elect Technol Cyber Secur Co Ltd, Inst Cyberspace Secur, Chengdu 610041, Peoples R China
[3] Sichuan Univ, Coll Comp Sci, Chengdu 610065, Peoples R China
[4] Southwest Jiaotong Univ, Ctr Informat Photon & Commun, Sch Informat Sci & Technol, Chengdu 611756, Peoples R China
基金
中国国家自然科学基金;
关键词
visible light communication (VLC); carrierless amplitude and phase (CAP) modulation; pairwise coding (PWC); dual-mode index modulation (DM); chaotic encryption; VISIBLE-LIGHT COMMUNICATION; PHASE MODULATION; NOMA; OFDM; AMPLITUDE;
D O I
10.3390/photonics9030141
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
In this paper, for the first time, we propose and experimentally demonstrate a novel pairwise coding (PWC)-based multiband carrierless amplitude and phase (mCAP) modulation with chaotic dual-mode index modulation (DM) for secure bandlimited visible light communication (VLC) systems. The combination of mCAP and DM can sustain a higher spectral efficiency (SE) compared with mCAP with conventional index modulation (IM), while PWC can be employed to efficiently mitigate the signal-to-noise ratio (SNR) imbalance caused by the low-pass frequency response of light emitting diodes (LEDs). Moreover, the DM is enhanced by a two-dimensional (2D) chaotic encryption scheme to guarantee the security of the useful information in VLC systems. Simulation and experimental results successfully verify the superiority of the proposed PWC-based mCAP-DM scheme with two-level chaotic encryption over other benchmark schemes.
引用
收藏
页数:11
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