Energy Efficient Resource Allocation for Mixed RF/VLC Heterogeneous Wireless Networks

Developing energy efficient wireless communication networks has become crucial due to the associated environmental and financial benefits. Visible light communication (VLC) has emerged as a promising candidate for achieving energy efficient wireless communications. Integrating VLC with radio frequency (RF)-based wireless networks has improved the achievable data rates of mobile users. In this paper, we investigate the energy efficiency benefits of integrating VLC with RF-based networks in a heterogeneous wireless environment. We formulate and solve the problem of power and bandwidth allocation for energy efficiency maximization of a heterogeneous network composed of a VLC system and an RF communication system. Then, we investigate the impact of the system parameters on the energy efficiency of the mixed RF/VLC heterogeneous network. Numerical results are conducted to corroborate the superiority in performance of the proposed hybrid system. The impact of hybrid system parameters on the overall energy efficiency is also quantified.

[1]  Leonard J. Cimini,et al.  Energy-Efficient Cooperative Relaying in Heterogeneous Radio Access Networks , 2012, IEEE Wireless Communications Letters.

[2]  Marcos D. Katz,et al.  Energy-Efficient Connectivity in Hybrid Radio-Optical Wireless Systems , 2013, ISWCS.

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

[4]  Joachim Walewski,et al.  High-Speed Wireless Indoor Communication via Visible Light , 2007 .

[5]  J. J. George,et al.  A Survey on Visible Light Communication , 2014 .

[6]  Rui Zhang,et al.  Exploiting Network Cooperation in Green Wireless Communication , 2012, IEEE Transactions on Communications.

[7]  Xuemin Shen,et al.  Relay Selection and Resource Allocation for Multi-User Cooperative OFDMA Networks , 2013, IEEE Transactions on Wireless Communications.

[8]  Zabih Ghassemlooy,et al.  Visible light communications towards 5G , 2015 .

[9]  Jiaheng Wang,et al.  Visible light communications in heterogeneous networks: Paving the way for user-centric design , 2015, IEEE Wireless Communications.

[10]  Weihua Zhuang,et al.  Network cooperation for energy saving in green radio communications , 2011, IEEE Wireless Communications.

[11]  Stefan Videv,et al.  Unlocking Spectral Efficiency in Intensity Modulation and Direct Detection Systems , 2015, IEEE Journal on Selected Areas in Communications.

[12]  Xiaoli Chu,et al.  Capacity expression and power allocation for arbitrary modulation and coding rates , 2013, 2013 IEEE Wireless Communications and Networking Conference (WCNC).

[13]  Jacques A. Ferland,et al.  Algorithms for generalized fractional programming , 1991, Math. Program..

[14]  Siegfried Schaible,et al.  Fractional Programming , 2009, Encyclopedia of Optimization.

[15]  Lajos Hanzo,et al.  Accuracy of the Point-Source Model of a Multi-LED Array in High-Speed Visible Light Communication Channel Characterization , 2015, IEEE Photonics Journal.

[16]  Lajos Hanzo,et al.  Cooperative Load Balancing in Hybrid Visible Light Communications and WiFi , 2015, IEEE Transactions on Communications.

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

[18]  Mohsen Kavehrad.  Sustainable energy-efficient wireless applications using light , 2010, IEEE Communications Magazine.

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

[20]  Slawomir Stanczak,et al.  Toward Energy-Efficient 5G Wireless Communications Technologies: Tools for decoupling the scaling of networks from the growth of operating power , 2014, IEEE Signal Processing Magazine.

[21]  B. Dingel,et al.  Light fidelity (Li-Fi): towards all-optical networking , 2013 .

[22]  小峯 敏彦.  Visible light wireless communications and its fundamental study , 2006 .

[23]  George K. Karagiannidis,et al.  Throughput-Optimal Link-Layer Design in Power Constrained Hybrid OW/RF Systems , 2015, IEEE Journal on Selected Areas in Communications.

[24]  Federico Boccardi,et al.  SLEEP mode techniques for small cell deployments , 2011, IEEE Communications Magazine.

[25]  Ali Mirvakili,et al.  A digitally-controlled, bi-level CMOS LED driver circuit combining PWM dimming and data transmission for visible light networks , 2010, 2010 IEEE Globecom Workshops.

[26]  Anna Maria Vegni,et al.  A hybrid Radio Frequency and broadcast Visible Light Communication system , 2011, 2011 IEEE GLOBECOM Workshops (GC Wkshps).

[27]  Rui Wang,et al.  Techniques for improving cellular radio base station energy efficiency , 2011, IEEE Wireless Communications.

[28]  H. Tullberg,et al.  Scenarios for the 5 G M obile and Wireless Communications : the Vision of the METIS Project , 2014 .

[29]  Marcos D. Katz,et al.  Cooperative multihop connectivity performance in visible light communications , 2013, 2013 IFIP Wireless Days (WD).

[30]  Dominic C. O'Brien,et al.  Vertical handover-decision-making algorithm using fuzzy logic for the integrated Radio-and-OW system , 2006, IEEE Transactions on Wireless Communications.

[31]  Shlomi Arnon.  Visible Light Communication , 2015 .

[32]  Harald Haas,et al.  On the benefits of cooperation via power control in OFDM-based visible light communication systems , 2014, 2014 IEEE 25th Annual International Symposium on Personal, Indoor, and Mobile Radio Communication (PIMRC).

[33]  Xiqi Gao,et al.  Cellular architecture and key technologies for 5G wireless communication networks , 2014, IEEE Communications Magazine.

[34]  Shaoen Wu,et al.  Visible light communications for 5G wireless networking systems: from fixed to mobile communications , 2014, IEEE Network.

[35]  K. Sindhubala,et al.  DESIGN AND IMPLEMENTATION OF VISIBLE LIGHT COMMUNICATION SYSTEM IN INDOOR ENVIRONMENT , 2015 .

[36]  Harald Haas,et al.  Area spectral efficiency performance comparison between VLC and RF femtocell networks , 2013, 2013 IEEE International Conference on Communications (ICC).

[37]  W. Zhuang,et al.  Green radio communications in a heterogeneous wireless medium , 2014, IEEE Wireless Communications.