Self-organising interference coordination in optical wireless networks

Ghimire, Birendra; Haas, Harald

doi:10.1186/1687-1499-2012-131

Cited by 56 publications

(34 citation statements)

References 19 publications

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“…CCI degrades the signal quality received by users, especially for cell edge users. Several interference mitigation techniques were considered in optical attocell networks such as busy-burst signalling [8] and fractional frequency reuse [9].…”

Section: Introductionmentioning

confidence: 99%

Downlink SINR Statistics in OFDM-Based Optical Attocell Networks with a Poisson Point Process Network Model

Cheng

Haas

2015

2015 IEEE Global Communications Conference (GLOBECOM)

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In this paper, the downlink signal-to-interferenceplus-noise ratio (SINR) statistics are analysed in a direct currentbiased optical orthogonal frequency division multiplexing (DCO-OFDM) based optical attocell network with a Poisson point process (PPP) cell deployment. An optical attocell system utilises existing lighting fixtures in an indoor environment to function as a small-cell cellular network. It uses each luminary as a base station (BS) to serve multiple nearby mobile users. Similar to a conventional radio frequency (RF) cellular system, the grid cell deployment is restricted by many practical issues in an optical attocell network. Therefore the performance of the system with PPP cell deployment is considered in this study in order to identify a lower bound for practical attocell networks with irregular cell deployment. An analytical framework is presented and compared with the computer simulations. Also the SINR statistics with different cell deployments are compared and discussed.Index Terms-cellular network, optical attocell network, Poisson point process, visible light communication.

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Section: Introductionmentioning

confidence: 99%

Downlink SINR Statistics in OFDM-Based Optical Attocell Networks with a Poisson Point Process Network Model

Cheng

Haas

2015

2015 IEEE Global Communications Conference (GLOBECOM)

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“…Marsh and Kahn [81] contributed one of the early studies investigating FR schemes conceived for optical communications, where an indoor infrared wireless communication system employing fixed-channel reuse for optical base stations was examined. In contrast to the static FR planning scheme, the resources are dynamically reused relying on a self-organizing allocation mechanism in [82] and a scalable orthogonal frequencydivision multiplexing access (OFDMA)-based VLC system is proposed in [83]. More recently, the Chen et al [84] designed a pair of fractional FR schemes for the DCO-OFDM-based optical attocell based networks, where strict fractional FR and soft FR were employed.…”

Section: ) Novel Design Of Vlc Ap Arrangementsmentioning

confidence: 99%

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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“…The primary objective of using VLC based WPAN is the possibility of providing extra amount of bandwidth to support all kinds of device in the indoor environment over its RF counterpart. Ideally LED enabled WPAN has bandwidth in THz range, but recent study has [6] unveiled that the effective bandwidth of the VLC based WPAN is restricted by the frontend design of the transmitter and receiver. Therefore resource allocation e.g.…”

Section: ⅲ Resource Allocation In Vlc Based Wpanmentioning

confidence: 99%

“…The optimization scheme presented in (5), (6), and (7) has one non-negative constraint. By transforming equation (5) into a minimization problem and also transforming (7) into negative constraint, the set of equation can be made to convex one [9] .…”

Section:  mentioning

confidence: 99%

Adaptive Bandwidth Allocation for QoS Guaranteed VLC Based WPAN

Saha¹,

Mondal²,

Jang³

2013

The Journal of Korean Institute of Communications and Informati

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BSTRACTVisible light communication based wireless personal area network (WPAN) has recently remained in the center of attention, as it shows a lot of promise to a be a perfect replacement for the contemporary Radio frequency (RF) communication at least in the indoor environment. A commercially deployable VLC based WPAN must support diverse traffic requirement for different kinds of service. In this paper, we have proposed an innovative bandwidth allocation scheme for VLC based WPAN. We wish to allocate bandwidth adaptively for users in a network where bandwidth for each user is allocated scalably. Our aim is to allow maximum number of users in a VLC based WPAN where each user is guaranteed their required QoS. The simulation results justify that the proposed scheme is better than the conventional scheme.

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Self-organising interference coordination in optical wireless networks

Cited by 56 publications

References 19 publications

Downlink SINR Statistics in OFDM-Based Optical Attocell Networks with a Poisson Point Process Network Model

Downlink SINR Statistics in OFDM-Based Optical Attocell Networks with a Poisson Point Process Network Model

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

Adaptive Bandwidth Allocation for QoS Guaranteed VLC Based WPAN

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