Indoor Optical Wireless
Performance of the Wavelet Transform-Neural Network Based Receiver for DPIM in Diffuse Indoor Optical Wireless Links in Presence of Artificial Light Interference
... diffuse indoor optical wireless (OW) links subjected to the artificial light interference (ALI) is reported with new receiver structure based on the discrete WT (DWT) and ...
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Transmit power reduction through subcarrier selection for MC CDMA based indoor optical wireless communications with IM/DD
... Optical wireless channels exhibit frequency-selective nature at high data rates for multi-carrier ...downlink optical wireless transmissions with the data rates of 10 Mbps, which is considered ...
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A Review of Various Modulation Techniques for Indoor Optical Wireless Communication System
... of Indoor Optical Wireless Communications, for example, OOK, PPM, DPPM, DAPPM, DPIM, and some all the more, each with its own particular elements and ...for Optical wireless ...
5
Genetic algorithm optimisation methods applied to the indoor optical wireless communications channel
... Over the preceding chapters it has been shown that the application of genetic algorithms to a few of the problems of indoor optical wireless communications may prove to be one of a possible number of ...
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Digital pulse interval modulation for indoor optical wireless communication systems
... Indoor optical wireless systems generally operate in the presence of intense ambient light, emanating from both natural and artificial ...average optical power requirement that is almost ...
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Performance analysis of indoor optical wireless CDMA system using optical zero cross correlation Code
... Figure-3 and 4 show, respectively the received power of the indoor optical wireless with and without considering the reflected light. The expected received power in dBm according to the indoor ...
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Indoor Optical Wireless Receiver – Theory And Design
... incident optical power, entering a semiconductor device produces thermal agitation that release holes-electron pairs generated at various points within the diode as illustrated in Fig ...for indoor ...
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Recent developments in indoor optical wireless systems
... Nevertheless, the resilience of MSM systems in the presence of multipath dispersion makes them attractive for indoor optical wireless communications. Thus, much recent effort has been di- rected ...
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Multi user indoor optical wireless communication system channel control using a genetic algorithm
... Indoor optical wireless (OW) communications using an infrared (IR) carrier provides traits of mobility found in the radio frequency (RF) domain with the advantageous high bandwidth avail- ability of ...
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Hologram selection in realistic indoor optical wireless systems with angle diversity receivers
... rates have been achieved [7]-[13]. Multi-beam OW links offer the opportunity for high-speed communications and the potential to achieve data rates up to 10 Gb/s with full mobility, although these have not been ...
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Design considerations of conventional angle diversity receivers for indoor optical wireless communications
... an indoor infrared channel are fully described by the channel’ s impulse re- sponse, which depends on multiple factors such as the room geometry, the reflection pattern of surfaces, the emitter and receiver ...
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High-Speed Indoor Optical Wireless Links Employing Fast Angle and Power Adaptive Computer-Generated Holograms With Imaging Receivers
... Recently optical wireless (OW) local area networks (LANs) have attracted a great deal of attention due to their potential to provide high-speed transmission through low cost hardware and without interfering ...
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Differential Amplitude Pulse Position Modulation for Indoor Wireless Optical Communications
... well-approximated indoor free-space optical link with the e ff ects of multipath dispersion was presented in ...average optical transmitter power level is constrained by concerns about power ...
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Hack Proofing Your Wireless Network pdf
... WPANs generally fall under the watchful eyes of the IEEE 802.15 working group (technically, 802.15 networks are defined as short-distance wireless networks). The growing trend toward more “smart” devices in the ...
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Enhanced wireless fingerprinting accuracy for indoor localization
... Developing technology is witnessing an increase on demand for applications that do useful to human such as finding people or a robot in a hotel service. These techniques may need working indoor because global ...
5
Indoor Positioning Method Based on Wireless Signal
... Since there are many non-negligible influencing factors in the indoor propagation process of signals, such as multipath propagation effect, background noise, reflection, etc., the relationship between RSSI and the ...
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Improved Localization Algorithms in Indoor Wireless Environment
... conventional wireless localization techniques, the performance is generally constrained by the number of reference nodes available in the communication ...in wireless devices to acquire additional useful ...
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Optical boundaries for LED-based indoor positioning system
... the optical boundary, unnecessary delays in positioning time can be ...undefined optical boundary affects the positioning time of the ...defined optical boundary reduced the positioning delay by a ...
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Wireless Quantum Key Distribution in Indoor Environments
... the mobile user is only equipped with the encoder module for QKD, which is often less expensive and bulky than the decoder module. With regards to the QKD receiver and the artificial light source, we assume that the QKD ...
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A Reaction Diffusion Model for Wireless Indoor Propagation
... of wireless computer networks has solved a lot of problems which typical wired environments have, mainly of base infrastructure and ...working. Wireless networks solve both of these problems as no wired ...
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