At present, 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 domain. By integrating the RF band relying on diverse radio techniques and optical bands, the next-generation heterogeneous networks (Het Nets) are expected to be a potential solution for supporting the ever-increasing wireless tele-traffic. This book is focused on system-level design of VLC and it is const
Chapter1 Introduction
1 .1 Background
1 .2 VLC Links
1 .3 VLC Networks
1 .4 Applications and Extensions of VLC
1 .5 Open Challenges
1 .6 Contributions and Book Outline
2.1 Chapter Introduction
2.2 Hybrid System Model
2.3 Metho do logy for Finding the Optimum LB
2.4 Performance Evaluations of the Hybrid System
2.5 Chapter Conclusions
Chapter3 Users First: User-centric Cluster Formation for Interference mitigation in Visible-light Networks
3 .1 Chapter Introduction
3 .2 System Model of the UC-VLC Network
3 .3 Methodology for UC Cluster Formation
3 .4 Performance Evaluations of the UC-VLC Network
3 .5 Chapter Conclusions
Chapter4 User-centric VLC for Energy-efficient Scalable Video Streaming
4.1 Chapter Introduction
4.2 System Model of the Distance-based UC Cluster Formation
4.3 Scalable Video Streaming
4.4 Energy-efficient Video Streaming Problem Formulation
4.5 Dynamic-programming-based Algorithm
4.6 Performance Evaluations of the Energy-efficient Video Streaming Scheme
4.7 Chapter Conclusions Chapter5 Book Conclusions and Future Work
5 .1 Summary and Conclusions
5 .2 Future Work
內容試閱:
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 domain. By integrating the RF band relying on diverse radio techniques and optical bands, the next-generation heterogeneous networks (Het Nets) are expected to be 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 Het Nets environments, which may require new system architectures. This motivates the research on the system design of user-centric (UC) VLC.
This book is focused on system-level design of VLC and it is constituted by three major aspects, namely (1) by the cooperative load balancing (LB) in hybrid VLC and wireless local area network ( WLAN) as discussed in Chapter 2; (2) by the UC cluster formation and multiuser scheduling ( MUS) of Chapter 3 ; (3 ) as well as by the energy-efficient scalable video streaming design example of Chapter4. Explicitly, this book first study VLC as a complementary extension of the existing RF networks. In Chapter 2, various conventional cell formations are invoked for networks, in order to tackle the significant inter-cell interference (ICI) problem,
Including the traditional unity/non-unity frequency reuse (FR) techniques as well as the advanced combined transmission (CT) and vectored transmission (VT)schemes. The concept of UC cluster formation is a counterpart of the conventional network-centric (NC) cell formation, which is dynamically constructed according to the users? location. Relying on graph theory, the joint cluster formation and MUS problem is introduced and solved in Chapter 3 . Furthermore, another important optimization aspect in most wireless networks is the achievable energy efficiency(EE) . Hence, this book introduces an energy-efficient scalable video streaming application for the UC-VLC network, which achieves superior performance compared to the NC cells in terms of its throughput attained, EE as well as the quality of service.
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January 20th, 2025