High data rate multiple input multiple output (MIMO) optical wireless communications using white led lighting

Zeng, Lubin; O’Brien, Dominic; Minh, Hoa Le; Faulkner, Grahame; Lee, Kyung-Woo; Jung, Daeseung; Oh, Yoon Suk; Won, Eun Tae

doi:10.1109/jsac.2009.091215

Cited by 824 publications

(535 citation statements)

References 17 publications

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“…Hence, the research of advanced MIMO transmission techniques has also been intensified in the optical domain [103]- [115]. In particular, the authors of [104] and [105] investigated the free-space optical MIMO systems equipped with multiple lasers and PDs, while the treatises [106]- [110] are based on VLC systems. Explicitly, Zeng et al [106] studied and compared the non-imaging and imaging MIMO techniques 5 , which provided deep insights concerning optical MIMO systems.…”

Section: Multiuser Signal Processingmentioning

confidence: 99%

“…In particular, the authors of [104] and [105] investigated the free-space optical MIMO systems equipped with multiple lasers and PDs, while the treatises [106]- [110] are based on VLC systems. Explicitly, Zeng et al [106] studied and compared the non-imaging and imaging MIMO techniques 5 , which provided deep insights concerning optical MIMO systems. An experimental 2 × 2 imaging-based MIMO system was reported in [107], but the illumination requirements were not given any cognisance.…”

Section: Multiuser Signal Processingmentioning

confidence: 99%

“…By contrast, in an imaging MIMO system, light propagates from each LED as before, but is projected onto a detector array [116]. The projected images may activate a single pixel or a group of pixels on the array, where each pixel of the detector array represents a receiver [106].…”

Section: Multiuser Signal Processingmentioning

confidence: 99%

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Optimization of Visible-Light Optical Wireless Systems: Network-Centric Versus User-Centric Designs

Zhang

Hanzo

2018

IEEE Commun. Surv. Tutorials

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Abstract-In order to counteract the explosive escalation of wireless tele-traffic, the communication spectrum has been gradually expanded from the conventional radio frequency (RF) band to the optical wireless (OW) domain. By integrating the classic RF band relying on diverse radio techniques and optical bands, the next-generation heterogeneous networks (HetNets) are expected to offer a potential solution for supporting the ever-increasing wireless tele-traffic. Owing to its abundant unlicensed spectral resources, visible light communications (VLC) combined with advanced illumination constitute a competent candidate for complementing the existing RF networks. Although the advantages of VLC are multi-fold, some challenges arise when incorporating VLC into the classic RF HetNet environments, which may require new system architectures. The user-centric (UC) design principle for VLC environments constitutes a novel and competitive design paradigm for the super dense multi-tier cell combinations of HetNets. The UC concept may be expected to become one of the disruptive techniques to be used in the forthcoming fifthgeneration era. This paper provides a comprehensive survey of visible-light-aided OW systems with special emphasis on the design and optimization of VLC networks, where the radically new UC design philosophy is reviewed. Finally, design guidelines are provided for VLC systems.

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Section: Multiuser Signal Processingmentioning

confidence: 99%

Section: Multiuser Signal Processingmentioning

confidence: 99%

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Optimization of Visible-Light Optical Wireless Systems: Network-Centric Versus User-Centric Designs

Zhang

Hanzo

2018

IEEE Commun. Surv. Tutorials

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“…For K equally likely SCPs, using the union bound technique [33], the probability of correctly decoding the SCP of the transmitted symbol, conditioned on a correctly decoded pulse position, is given by (26).…”

Section: A Effect Of Timing Offset On the Detection Of Spatial Constmentioning

confidence: 99%

“…As established in previous reports on SM, the performance of SM technique is highly dependent on the dissimilarity of the channel gains of the transmit-receive paths [1], [2], [25]. However, the optical MIMO channel can be highly correlated if the locations of the transmit and receive units are not optimized [26], [27], which results in a significant penalty in error performance. By physically separating the MIMO transmit-receive paths in order to achieve channel gain dissimilarity, each path may experience slightly different propagation characteristics such as channel delay.…”

mentioning

confidence: 99%

Effect of Synchronization Error on Optical Spatial Modulation

Olanrewaju

Popoola

2017

IEEE Trans. Commun.

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Abstract-This work examines the effect of synchronisation error on the performance of spatial modulation (SM) technique in optical wireless communication (OWC) systems. SM exploits the deployment of multiple transmitters by encoding user information on their spatial domain. In most works related to SM, a perfect synchronisation among these multiple transmitters is assumed. However, synchronisation error can result from multipath propagation in OWC channel, and clock jitter and variation in propagation delay of each transmitter. Such error in synchronisation degrades system performance and hence the need to investigate its effect. Using union bound technique, and defining synchronisation errors as timing offsets in the received signals, we derive the symbol error rate for space shift keying (SSK), generalised SSK (GSSK), SM and generalised SM (GSM) schemes, and we validate our analysis with tightly-matched simulation results. Results show degradation in performance increases with synchronisation error. While SSK is tolerant for a small range of synchronisation error, GSSK, SM and GSM are significantly impaired. Our results also demonstrate the dependence of SM on channel gain values. We observe that the lower the channel gain of the transmitter in which synchronisation error occurs, the lesser the impact of the synchronisation error on the system performance.

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Emerging Applications of LEDs

2021

From LED to Solid State Lighting

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High data rate multiple input multiple output (MIMO) optical wireless communications using white led lighting

Cited by 824 publications

References 17 publications

Optimization of Visible-Light Optical Wireless Systems: Network-Centric Versus User-Centric Designs

Optimization of Visible-Light Optical Wireless Systems: Network-Centric Versus User-Centric Designs

Effect of Synchronization Error on Optical Spatial Modulation

Emerging Applications of LEDs

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