An Improved Semi-Definite Programming Algorithm for Radio Frequency Energy Harvesting for Mobile Devices

K. A. AbuBilal, S. M. Sani, Y. A. Mshelia

Abstract


Energy harvesting (EH) is an attractive solution for enabling self-sustainable wireless devices in communication networks and Radio-frequency (RF) signals radiated by ambient transmitters becomes a sustainable new source for wireless energy harvesting. It is therefore important to maximize the total harvested RF energy in order to sustain and charge mobile devices without the use of external sources. In this paper, an improved Semi-definite programming algorithm (ISPA) for radio frequency energy harvesting for mobile devices is presented. A dynamic weight adaptive technique will be used to solve the Semi-definite programming (SDP) algorithm to obtain short convergence time  for optimal solution that maximize the amount of RF energy harvested at the receiver and guarantee quality of service of information transfer  .Different number of transmitting antennas were considered and the results show an improvement of 24.24%, 12.11% and 56.05% for ISPA over Semi-definite Programming Algorithm (SPA) with  number of transmitting antennas  NT=4, NT=3, and NT=2 respectively. This shows that the developed ISPA performed more than the SPA which translate to more RF energy harvested at the receiver.


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References


Boshkovska, E., Morsi, R., Ng, D. W. K., & Schober, R. (2016b). Power allocation and scheduling for SWIPT systems with non-linear energy harvesting model. Paper presented at the Communications (ICC).

Grover, P., & Sahai, A. (2010). Shannon meets Tesla: Wireless information and power transfer. Paper presented at the Information Theory Proceedings (ISIT).

Krikidis, I., Timotheou, S., Nikolaou, S., Zheng, G., Ng, D. W. K., & Schober, R. (2014). Simultaneous wireless information and power transfer in modern communication systems. IEEE Communications Magazine, 52(11), 104-110.

Leng, S., Ng, D. W. K., Zlatanov, N., & Schober, R. (2016). Multi-objective resource allocation in full-duplex SWIPT systems. Paper presented at the Communications (ICC).

Ng, D. W. K., Lo, E. S., & Schober, R. (2014). Robust beamforming for secure communication in systems with wireless information and power transfer. IEEE Transactions on Wireless Communications, 13(8), 4599-4615

Varshney, L. R. (2008). Transporting information and energy simultaneously. Paper presented at the Information Theory, ISIT.

Zhou, X., Zhang, R., & Ho, C. K. (2013). Wireless information and power transfer: Architecture design and rate-energy tradeoff. IEEE Transactions on Communications, 61(11), 4754-4767


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