Channel and Bit Adaptive Power Control Strategy for Uplink NOMA VLC Systems

Non-orthogonal multiple access (NOMA) can be an effective solution to the limited bandwidth of light emitting diodes for visible light communication (VLC) systems to support multiuser communication. The current available works for NOMA VLC systems mainly concentrate on downlinks and the existing power allocation algorithms mainly focus on the channel state information and ignore the influence of transmitted signals. In this paper, we propose a channel and bit adaptive power control strategy for uplink NOMA VLC systems by jointly considering the channel state information and the transmission bit rate. Under this adaptive power control strategy, it is proved that the received signal at the photodiode (PD) receiver constitutes a sizeable pulse amplitude modulation constellation and low-complexity maximum likelihood detection is admitted. The simulation results indicate that our proposed adaptive power control strategy outperforms the gain ratio power allocation scheme, fixed power allocation scheme, and time division multiple access scheme.

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

[2]  Wei Xu,et al.  Optimal power allocation for downlink two-user non-orthogonal multiple access in visible light communication , 2017, Journal of Communications and Information Networks.

[3]  Yi-jun Zhu,et al.  Channel-Adapted Spatial Modulation for Massive MIMO Visible Light Communications , 2016, IEEE Photonics Technology Letters.

[4]  Junyi Li,et al.  Visible light communication: opportunities, challenges and the path to market , 2013, IEEE Communications Magazine.

[5]  Bayan S. Sharif,et al.  Optical Non-Orthogonal Multiple Access for Visible Light Communication , 2017, IEEE Wireless Communications.

[6]  Anthony C. Boucouvalas,et al.  Asymmetric throughput in IrDA links , 1999 .

[7]  Jian-Kang Zhang,et al.  Signal-Cooperative Multilayer-Modulated VLC Systems for Automotive Applications , 2016, IEEE Photonics Journal.

[8]  Xin Yang,et al.  Optimal Constellation Design for Indoor $2\times 2$ MIMO Visible Light Communications , 2016, IEEE Communications Letters.

[9]  Xu Wei,et al.  Optimal power allocation for downlink two-user non-orthogonal multiple access in visible light communication , 2017 .

[10]  Thomas D. C. Little,et al.  Impact of lighting requirements on VLC systems , 2013, IEEE Communications Magazine.

[11]  Sung-Man Kim,et al.  Visible light communication using TDMA optical beamforming , 2017, EURASIP J. Wirel. Commun. Netw..

[12]  Zhen-Yu Wang,et al.  Optimization of Finite-Alphabet Signaling for Two-User Multiaccess VLC Systems , 2018, IEEE Photonics Journal.

[13]  Anass Benjebbour,et al.  Concept and practical considerations of non-orthogonal multiple access (NOMA) for future radio access , 2013, 2013 International Symposium on Intelligent Signal Processing and Communication Systems.

[14]  Wasiu O. Popoola,et al.  Visible Light Communications: Theory and Applications , 2016 .

[15]  Wei Xu,et al.  Fair Non-Orthogonal Multiple Access for Visible Light Communication Downlinks , 2017, IEEE Wireless Communications Letters.

[16]  Harald Haas,et al.  Indoor optical wireless communication: potential and state-of-the-art , 2011, IEEE Communications Magazine.

[17]  Rajendran Parthiban,et al.  LED Based Indoor Visible Light Communications: State of the Art , 2015, IEEE Communications Surveys & Tutorials.

[18]  Manav R. Bhatnagar,et al.  Mobile User Connectivity in Relay-Assisted Visible Light Communications , 2018, Sensors.

[19]  Muhammad Imran,et al.  Non-Orthogonal Multiple Access (NOMA) for cellular future radio access , 2017 .

[20]  Anthony C. Boucouvalas.  Indoor ambient light noise and its effect on wireless optical links , 1996 .

[21]  Rui Valadas,et al.  Performance of infrared transmission systems under ambient light interference , 1996 .

[22]  Liang Yin,et al.  On the performance of non-orthogonal multiple access in visible light communication , 2015, 2015 IEEE 26th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC).

[23]  Anass Benjebbour,et al.  System-level performance evaluation of downlink non-orthogonal multiple access (NOMA) , 2013, 2013 IEEE 24th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC).

[24]  Anthony C. Boucouvalas.  Asymmetry of free-space optical links , 1995, Other Conferences.

[25]  Guan Gui,et al.  Symbol error rate performance analysis of non- orthogonal multiple access for visible light communications , 2017, China Communications.

[26]  Jian-Kang Zhang,et al.  Space-Collaborative Constellation Designs for MIMO Indoor Visible Light Communications , 2015, IEEE Photonics Technology Letters.

[27]  Pingzhi Fan,et al.  On the Performance of Non-Orthogonal Multiple Access in 5G Systems with Randomly Deployed Users , 2014, IEEE Signal Processing Letters.

[28]  Jian-Kang Zhang,et al.  Block Precoding for Peak-Limited MISO Broadcast VLC: Constellation-Optimal Structure and Addition-Unique Designs , 2018, IEEE Journal on Selected Areas in Communications.

[29]  Masao Nakagawa,et al.  Fundamental analysis for visible-light communication system using LED lights , 2004, IEEE Transactions on Consumer Electronics.

[30]  George K. Karagiannidis,et al.  Non-Orthogonal Multiple Access for Visible Light Communications , 2015, IEEE Photonics Technology Letters.

[31]  Yi-Jun Zhu,et al.  Faster-Than-Nyquist Signal Design for Multiuser Multicell Indoor Visible Light Communications , 2016, IEEE Photonics Journal.

[32]  Dominic C. O'Brien,et al.  Visible light communications: Challenges and possibilities , 2008, 2008 IEEE 19th International Symposium on Personal, Indoor and Mobile Radio Communications.

[33]  Anthony C. Boucouvalas,et al.  Asymmetry in optical wireless links , 2000 .

[34]  Hong-Yi Yu,et al.  Energy Efficient Transceiver Design for NOMA VLC Downlinks with Finite-Alphabet Inputs , 2018 .

[35]  D.J. Goodman,et al.  Single carrier FDMA for uplink wireless transmission , 2006, IEEE Vehicular Technology Magazine.