Handover in VLC networks with coordinated multipoint transmission

In this work, we consider a cellular visible light communication (VLC) network where each ceiling luminary serves as an access point (AP). The network is assumed to support coordinated multipoint transmission (CoMP). The user is mainly served by an AP (i.e., luminary) from which he/she gets the strongest signal. When the user moves towards the cell edge, the received signal from the served AP drops. Based on the handover algorithm decision, a handover to another AP can take place or CoMP is initiated. In the case of CoMP, the user is jointly served by two coordinating APs that transmit the same information. We compare the performance of proposed joint transmission-handover algorithm with conventional hard handover and demonstrate significant performance gains in terms of user data rate.

[1]  Ngoc-Tan Nguyen,et al.  LEDs configuration method for supporting handover in visible light communication , 2014, TENCON 2014 - 2014 IEEE Region 10 Conference.

[2]  Parth H. Pathak,et al.  Visible Light Communication, Networking, and Sensing: A Survey, Potential and Challenges , 2015, IEEE Communications Surveys & Tutorials.

[3]  Fang Wang,et al.  Efficient vertical handover scheme for heterogeneous VLC-RF systems , 2015, IEEE/OSA Journal of Optical Communications and Networking.

[4]  Anna Maria Vegni,et al.  Handover in VLC systems with cooperating mobile devices , 2012, 2012 International Conference on Computing, Networking and Communications (ICNC).

[5]  Joseph M. Kahn,et al.  Wireless Infrared Communications , 1994 .

[6]  Harald Haas,et al.  What is LiFi? , 2015, 2015 European Conference on Optical Communication (ECOC).

[7]  Harald Haas,et al.  Dynamic Load Balancing With Handover in Hybrid Li-Fi and Wi-Fi Networks , 2015, Journal of Lightwave Technology.

[8]  Lajos Hanzo,et al.  Users First: User-Centric Cluster Formation for Interference-Mitigation in Visible-Light Networks , 2016, IEEE Transactions on Wireless Communications.

[9]  Mostafa Zaman Chowdhury,et al.  A pre-scanning-based link switching scheme in visible light communication networks , 2013, 2013 Fifth International Conference on Ubiquitous and Future Networks (ICUFN).

[10]  Michael Rahaim,et al.  SINR analysis and cell zooming with constant illumination for indoor VLC networks , 2013, 2013 2nd International Workshop on Optical Wireless Communications (IWOW).

[11]  Harald Haas,et al.  Joint transmission in indoor visible light communication downlink cellular networks , 2013, 2013 IEEE Globecom Workshops (GC Wkshps).

[12]  Issa M. Khalil,et al.  Joint link scheduling and brightness control for greening VLC-based indoor access networks , 2016, IEEE/OSA Journal of Optical Communications and Networking.

[13]  Mauro Biagi,et al.  Optimized LEDs Footprinting for Indoor Visible Light Communication Networks , 2016, IEEE Photonics Technology Letters.

[14]  Harald Haas,et al.  Analysis of downlink transmission in DCO-OFDM-based optical attocell networks , 2014, 2014 IEEE Global Communications Conference.

[15]  J. Armstrong,et al.  OFDM for Optical Communications , 2009, Journal of Lightwave Technology.

[16]  Hui Tian,et al.  Coordinated Transmission Based Interference Mitigation in VLC Network , 2015, 2015 IEEE 82nd Vehicular Technology Conference (VTC2015-Fall).

[17]  Özgür B. Akan,et al.  Soft Handover in OFDMA Based Visible Light Communication Networks , 2015, 2015 IEEE 82nd Vehicular Technology Conference (VTC2015-Fall).

[18]  Murat Uysal,et al.  Channel Modeling and Characterization for Visible Light Communications , 2015, IEEE Photonics Journal.