STM Journals Peer-reviewed research from Consortium e-Learning Network

Journal of Telecommunication, Switching Systems and Networks

On the Trade-Off between Information Rate and Power Transfer for Multiuser Scheduling Schemes under Rayleigh Fading

  1. Farzana Hydress
  2. Nikitha V. P.
  3. Alphonsa Mathew
  4. Shafeeja M. P.
  5. Deepak K.

Abstract

With the evolution of wireless communication technologies, the need for green communication and energy saving becomes more critical than ever. The lifetime of a battery-powered network usually depends on the battery capacity. RF energy harvesting is a promising technique to prolong the battery lifetime effectively. The performance of multiuser scheduling schemes for a time-slotted system with simultaneous wireless information and power transfer under Rayleigh fading channel is studied in this paper. In each time slot, one user is scheduled to receive information while the remaining users opportunistically harvest the energy. We study the tradeoff between information rate and total harvested energy for different scheduling schemes. The MATLAB simulation results show that rate-energy performance of order-based SNR scheduling is better than that of the order-based N-SNR scheduling which is better than that of the order-based equal throughput scheduling under long range power transfer conditions. Also, the result shows that the consumed power in Nakagami sub-channels is less than consumed power in Rayleigh sub-channels.

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