A Polarization-Based Interference-Tolerant VLC Link for Low Data Rate Applications

Atta, Muhammad Asim; Bermak, Amine

doi:10.1109/jphot.2018.2809792

Cited by 18 publications

(11 citation statements)

References 17 publications

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“…In [80], at the receiver two PDs with different polarization filters are used to cancel interference. A similar method was proposed in [81] to resist unpolarized optical interference. These approaches do not require extra feedback to exchange CSI.…”

Section: ) Specially Tailoredmentioning

confidence: 99%

“…Precoding [126][127][128][129] BIA [135][136][137] Polarization [143], [144] ADR [54], [141], [142] SIC [139], [140] Interference Avoidance…”

Section: Orthogonal Divisionmentioning

confidence: 99%

“…A polarization-based approach was developed in [143], where two PDs with different polarization filters are used to cancel interference. A similar method was proposed in [144] to resist un-polarized optical interference. This type of method requires a perfect alignment of polarization directions between the transmitter and receiver, which is feasible in laboratorial experiments but much difficult to implement in practice.…”

Section: Interference Managementmentioning

confidence: 99%

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Hybrid LiFi and WiFi Networks: A Survey

Soltani

Zhou

et al. 2021

IEEE Commun. Surv. Tutorials

175

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In order to tackle the rapidly growing number of mobile devices and their expanding demands for Internet services, network convergence is envisaged to integrate different technology domains. For indoor wireless communications, one promising approach is to coordinate light fidelity (LiFi) and wireless fidelity (WiFi), namely hybrid LiFi and WiFi networks (HLWNets). This hybrid network combines the high-speed data transmission of LiFi and the ubiquitous coverage of WiFi. In this paper, we present a survey-style introduction to HLWNets, starting with a framework of system design in the aspects of network architectures, cell deployments, multiple access and modulation schemes, illumination requirements and backhaul. Key performance metrics and recent achievements are then reviewed to demonstrate the superiority of HLWNets against stand-alone networks. Further, the unique challenges facing HLWNets are elaborated on key research topics including user behavior modeling, interference management, handover and load balancing. Moreover, the potential of HLWNets in the application areas is presented, exemplified by indoor positioning and physical layer security. Finally, the challenges and future research directions are discussed.

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Section: ) Specially Tailoredmentioning

confidence: 99%

“…Precoding [126][127][128][129] BIA [135][136][137] Polarization [143], [144] ADR [54], [141], [142] SIC [139], [140] Interference Avoidance…”

Section: Orthogonal Divisionmentioning

confidence: 99%

Section: Interference Managementmentioning

confidence: 99%

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Hybrid LiFi and WiFi Networks: A Survey

Soltani

Zhou

et al. 2021

IEEE Commun. Surv. Tutorials

175

View full text Add to dashboard Cite

show abstract

“…Related work demonstrated a setup consisting of red/green/blue laser diodes reaching 40 Gbit/s using PDM OFDM signals [ 15 ]. Furthermore, other research has used orthogonal polarizers at both the transmitter and the receiver side to implement differential signalling between polarization states on one hand and to increase robustness to interference on the other hand [ 16 ]. These systems deploy photodiode receivers, which increase the bandwidth significantly compared to camera-based receivers.…”

Section: Introductionmentioning

confidence: 99%

“…These systems deploy photodiode receivers, which increase the bandwidth significantly compared to camera-based receivers. While the receiver orientation was fixed in aforementioned work [ 16 ], the impact of the receiver rotation with respect to the transmitters was assessed in previous work [ 17 ]. In this work, this assessment is reiterated and extended.…”

Section: Introductionmentioning

confidence: 99%

Polarization Differential Visible Light Communication: Theory and Experimental Evaluation

Bruycker

Raes

Zvánovec

et al. 2020

Sensors

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Visible Light Communication (VLC) has received substantial research attention in the last decade. The vast majority of VLC focuses on the modulation of the transmitted light intensity. In this work, however, the intensity is kept constant while the polarization direction is deployed as a carrier of information. Demodulation is realized by using a differential receiver pair equipped with mutually orthogonal polarizers. An analytical expression to evaluate the Signal-to-Noise Ratio (SNR) as a function of the rotation angle of the receiver is derived. It is demonstrated that the signal quality can deteriorate heavily with receiver orientation when using a single differential receiver pair. A way to overcome this drawback using two receiver pairs is described. The analytical expression is experimentally verified through measurements with two different receiver setups. This work demonstrates the potential of polarization-based modulation in the field of VLC, where receiver rotation robustness has been achieved by means of a dedicated quadrant photodiode receiver.

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Interference mitigation in multiuserWDM VLCsystems using differential receiver

Younus

2022

Trans Emerging Tel Tech

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To eliminate the interference between wavelength division multiplexing (WDM) channels in multiuser visible light communication systems, we proposed a differential detection. Four colors laser diodes are utilized as transmitters (Txs).Three colors (channels) are used to send the data and one color is used to convey a control signal in each Tx. The control signal is applied to find the best Tx for each user and to find the level of interference of each WDM data channel.The optical receiver has six photodetectors (PDs). Three PDs receive the data and three PDs receiver control signals. Each optical receiver has three differential amplifiers. The input of each differential amplifier is the difference between the output of two PDs (one PD captures the data and interfering signals and one PD captures control signals). Thus, the amount of the interference that is calculated by the control signals of each color will be removed from each WDM data signal by the differential amplifier. Six users are assumed in our proposed system and each user is allocated one Tx. In this work, reflections up to the third order and mobility of the user are considered while using a simple wide field of view receiver.

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A Polarization-Based Interference-Tolerant VLC Link for Low Data Rate Applications

Cited by 18 publications

References 17 publications

Hybrid LiFi and WiFi Networks: A Survey

Hybrid LiFi and WiFi Networks: A Survey

Polarization Differential Visible Light Communication: Theory and Experimental Evaluation

Interference mitigation in multiuserWDM VLCsystems using differential receiver

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