Reduction of SINR Fluctuation in Indoor Multi-Cell VLC Systems Using Optimized Angle Diversity Receiver

Chen, Chen; Zhong, Wen‐De; Yang, Helin; Zhang, Sheng; Du, Pengfei

doi:10.1109/jlt.2018.2842080

Cited by 80 publications

(54 citation statements)

References 31 publications

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“…Comparison with ADR: An ADR consists of multiple detectors and the location of side detectors plays an important role hence requires optimization of their positioning . Although an ADR can receive reflected signals to improve the coverage, it also receives the interference from neighboring cells, which further requires selection combining techniques to mitigate the interference .…”

Section: Resultsmentioning

confidence: 85%

“…Assuming that primary and secondary LEDs transmit the same data with same power, 21 ie, P p = P s , then (14) reduces to…”

Section: Interference Analysismentioning

confidence: 99%

“…The angle diversity receiver (ADR) has also been proposed to mitigate the interference and improve the performance of VLC system. [11][12][13][14] The ADR usually consists of multiple detectors with one top detector and other inclined side detectors. The side detectors are used to receive multiple signals from different directions.…”

Section: Introductionmentioning

confidence: 99%

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Interference mitigation technique with coverage improvement in indoor VLC system

Shashikant

Garg

Sharma

2018

Trans Emerging Tel Tech

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We consider an indoor visible light communication system in which an arbitrary number of light‐emitting diodes are transmitting the information to the users. Due to the circular field of view of the light‐emitting diode transmitters, there is always a trade‐off between the coverage and interference at the receiving end. Any approach to increase the coverage area increases the overlapping area of two or more field of views resulting in severe interference at the receiver. In this paper, we propose a method that simultaneously reduces the interference due to multiple sources in an indoor visible light communication system and improves the coverage area. The signal‐to‐interference ratio (γSIR)–based approach is used for analyzing the outage and error performances. Specifically, the effect of the proposed method is investigated on various performance metrics such as signal‐to‐interference ratio, coverage probability, and bit error rate. The effect of ambient light on system performance is also incorporated in the analysis.

show abstract

Section: Resultsmentioning

confidence: 85%

“…Assuming that primary and secondary LEDs transmit the same data with same power, 21 ie, P p = P s , then (14) reduces to…”

Section: Interference Analysismentioning

confidence: 99%

See 1 more Smart Citation

Interference mitigation technique with coverage improvement in indoor VLC system

Shashikant

Garg

Sharma

2018

Trans Emerging Tel Tech

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“…In [30], an ADR was proposed with a hemispherical base where the PDs were placed in one or two layers. In [31,32], different ADR designs were presented where the PDs are placed at a given inclination angle on the same horizontal plane. Such ADRs can help maintain a VLC link in stationary scenario or during yaw movement but not in the presence of roll and/or pitch movement of the receiver.…”

Section: A Visible Light Communicationmentioning

confidence: 99%

“…So, signals received by all the PDs on a headset are combined to produce the resultant signal. We consider three diversity combining techniques, equal-gain-combining (EGC), selectgain-combining (SBC), and maximal-ratio-combining (MRC) [30,31,37].…”

Section: Vlc Channel Model a Received Signal Powermentioning

confidence: 99%

Visible Light Communication for Next Generation Untethered Virtual Reality Systems

Khan

Chakareski

2019

2019 IEEE International Conference on Communications Workshops (ICC Workshops)

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Virtual and augmented reality (VR/AR) systems are emerging technologies requiring data rates of multiple Gbps. Existing high quality VR headsets require connections through HDMI cables to a computer rendering rich graphic contents to meet the extremely high data transfer rate requirement. Such a cable connection limits the VR user's mobility and interferes with the VR experience. Current wireless technologies such as WiFi cannot support the multi-Gbps graphics data transfer. Instead, we propose to use visible light communication (VLC) for establishing high speed wireless links between a rendering computer and a VR headset. But, VLC transceivers are highly directional with narrow beams and require constant maintenance of line-of-sight (LOS) alignment between the transmitter and the receiver. Thus, we present a novel multi-detector hemispherical VR headset design to tackle the beam misalignment problem caused by the VR user's random head orientation. We provide detailed analysis on how the number of detectors on the headset can be minimized while maintaining the required beam alignment and providing high quality VR experience.

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Impact of diversity combining schemes in a multi-cell VLC system with angle diversity receivers

et al. 2022

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Reduction of SINR Fluctuation in Indoor Multi-Cell VLC Systems Using Optimized Angle Diversity Receiver

Cited by 80 publications

References 31 publications

Interference mitigation technique with coverage improvement in indoor VLC system

Interference mitigation technique with coverage improvement in indoor VLC system

Visible Light Communication for Next Generation Untethered Virtual Reality Systems

Impact of diversity combining schemes in a multi-cell VLC system with angle diversity receivers

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