Downlink Performance of Optical Attocell Networks

Chen, Cheng; Basnayaka, Dushyantha A.; Haas, Harald

doi:10.1109/jlt.2015.2511015

Cited by 195 publications

(209 citation statements)

References 41 publications

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“…For single-carrier modulation schemes like OnOff Keying (OOK), a scheme to improve the performance when LoS link blockage happens was already proposed in [7]. The benchmark for this work is established in [8].…”

Section: Introductionmentioning

confidence: 99%

Robust Cooperative Multicarrier Transmission Scheme for Optical Wireless Cellular Networks

Guzmán

Dowhuszko

Jiménez

et al. 2018

IEEE Photon. Technol. Lett.

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Abstract-Visible Light Communication (VLC) is a promising technology to achieve high data rates in heterogeneous scenarios. However, VLC strongly depends on the existence of a Line-of-Sight (LoS) link between transmitter and receiver to guarantee a good data rate performance, which is often a condition that is difficult to satisfy in practice. In this paper, a novel cooperative multicarrier transmission scheme is proposed, where neighboring attocells smartly cooperate to decrease the probability of blockage in the LoS link. This approach is compared to single-cell transmission schemes, obtaining notable gains in both received Signal-to-Interference-plus-Noise Ratio and cell data rate when blockage of the LoS link occurs towards the nearest Base Station.

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Section: Introductionmentioning

confidence: 99%

Robust Cooperative Multicarrier Transmission Scheme for Optical Wireless Cellular Networks

Guzmán

Dowhuszko

Jiménez

et al. 2018

IEEE Photon. Technol. Lett.

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“…Similar to the conventional RF cellular networks, the SINR statistics are deemed to be an important metric for characterising the service quality [92], in terms of coverage/outage probability, data rate, etc. For example, the coverage probability/cell boundary of the optical cell may be defined as P[SINR > T ], which is the probability that a randomly chosen user can achieve a target SINR T or the average fraction of the network area that has adequate "coverage" at any time [93].…”

Section: ) Bandwidth Efficiencymentioning

confidence: 99%

“…Hence, another widely-used approach is to model the location of the RF base stations as Poisson point process [93]. Following the work in [93], Chen et al [92] derived the analytical expressions for the SINR statistics of DCO-OFDM-aided VLC networks by employing the hexagonal and the Poisson point process based random AP distribution. As also suggested in [92], both of the above-mentioned two extreme cell deployments would be impractical, since they may require extra engineering work to redesign the lighting infrastructure.…”

Section: ) Bandwidth Efficiencymentioning

confidence: 99%

“…Following the work in [93], Chen et al [92] derived the analytical expressions for the SINR statistics of DCO-OFDM-aided VLC networks by employing the hexagonal and the Poisson point process based random AP distribution. As also suggested in [92], both of the above-mentioned two extreme cell deployments would be impractical, since they may require extra engineering work to redesign the lighting infrastructure. Therefore, the models adopted from RF cellular networks may be used to provide an upper and lower bound, respectively, for the SINR performance of other potential optical cell deployments in practice.…”

Section: ) Bandwidth Efficiencymentioning

confidence: 99%

“…Furthermore, the widely-used Poisson point process based random RF network models may not constitute a practical approach for VLC systems, since the lighting infrastructure is seldom deployed in a random manner. In order to avoid having neighbouring APs extremely close to each other in a Poisson point process based network, the hard-core point process network studied in [92] may be considered as another practical solution for VLC AP deployment.…”

Section: A Design Guidelinesmentioning

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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Leveraging light‐fidelity for internet of light: State‐of‐the‐art and research challenges

Mukherjee

Lloret

2018

Internet Technology Letters

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In this article, we review state-of-the-art of Light-Fidelity (LiFi) technology. Afterward, we show how hybrid LiFi/WiFi system enhances the system throughput and user's quality-of-services in the heterogeneous networks. Finally, we highlight the ongoing research efforts and open challenges toward internet of light with large-scale LiFi deployment in future wireless networks. KEYWORDS HetNet, LiFi, VLC, WiFi/LiFi1 Recently, the VLC standardization initiatives are being taken as a part of IEEE 802.15.7. 2 What is LiFi?Light-Fidelity (LiFi)-the term was first coined by Harald Haas in 2011 3 -transmits the wireless data through the modulation of the visible light. Generally, LiFi uses LEDs for transmission with intensity modulation (IM) and the signal is detected by using the principle of direct detection with a photodiode. LiFi extends the concept of VLC for highly secure, bi-directional, and fully networked wireless communication systems. Unlike point-to-point communications in VLC, LiFi provides multipoint communications with light emitting diodes (LEDs) as access points (APs) in the networks. 4,5 In addition, user mobility and multiuser access are supported by LiFi with attocells 6,7 in the network.

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Downlink Performance of Optical Attocell Networks

Cited by 195 publications

References 41 publications

Robust Cooperative Multicarrier Transmission Scheme for Optical Wireless Cellular Networks

Robust Cooperative Multicarrier Transmission Scheme for Optical Wireless Cellular Networks

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

Leveraging light‐fidelity for internet of light: State‐of‐the‐art and research challenges

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