WIRELESS SYSTEMS WITH ENERGY HARVESTING CAPABILITIES:TRANSMISSION STRATEGIES FOR DEVICES WITH  WIRELESS POWER TRANSFER CAPABILITIES

Efficient usage of energy resources is a growing concern in today's communication systems.  Solutions that consider wireless power transfer (WPT) offer an attractive alternative. In systems with WPT capabilities, the two tasks, information and power transfer is done simultaneously in a wireless medium and simultaneous information and power transfer strategies are developped.  The optimal transmission strategies for these two tasks are different, hence novel transmission strategies have to be designed in order to be able to do these two tasks most efficiently.  In addition to efficient usage of energy sources, WPT also reduces the dependence on batteries and the grid and  brings flexibility in a wide range of applications including wireless sensor networks and smart homes.

Our approach:  Practical receiver  structures with linear filtering, low complexity designs such as linear precoders, power allocation methods are important  ingredients in our work. The resulting solutions complement the existing information theoretic solutions, and will contribute to  creating future green and smart communication systems.

My EU Marie Skłodowska-Curie Project: "GRENHAS: Green and Smart Communications with Energy Harvesting: A Signal Processing Approach".

Publications:

A. Özçelikkale, and T. M. Duman, “Linear Precoder Design for Simultaneous Information and Energy Transfer over Two-User MIMO Interference Channels”,  IEEE Transactions on  Wireless Communications, vol. 14, no. 10, pp. 5836-5847, Oct. 2015.

A. Özçelikkale, T. McKelvey, and M. Viberg, “Wireless Information and Power Transfer in MIMO Channels under Rician fading”, Proc. 2015 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), pp. 3187-3191, April 2015.

A. Özçelikkale, T. McKelvey, and M. Viberg, ``Simultaneous information and power transfer with transmitters with hardware impairments'', 2016 International Symposium on  Wireless Communication Systems (ISWCS), pp.114 -118, Sept. 2016.

X. Xu, A. Özçelikkale, T. McKelvey, and M. Viberg, “Simultaneous Information and Power Transfer under a Non-Linear RF Energy Harvesting Model", 2017 IEEE International Conference on Communications (ICC) -Workshop on Emerging Energy Harvesting Solutions for 5G Networks, 2017.

R. Du, A. Özçelikkale, C. Fischione, and M. Xiao, “Optimal Energy Beamforming and Data Routing for Immortal Wireless Sensor Networks", 2017 IEEE International Conference on Communications (ICC), 2017.

R. Du, A. Özçelikkale, C. Fischione, and M. Xiao, “Towards Immortal Wireless Sensor Networks by Optimal Energy Beamforming and Data Routing”, IEEE Transactions on Wireless Communications,  vol. 17, pp. 5338–5352, Aug. 2018.