Throughput Analysis of a SWIPT Enabled Two-Way Decode-and-Forward Cognitive Relay Network

  • Syed Tariq Shah
  • Min Young ChungEmail author
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 10408)


Wireless energy harvesting has emerged as an efficient technique to prolong the network life time of energy constrained network. In this paper, we propose a simultaneous wireless information and power transfer (SWIPT) based decode-and-forward (DF) cognitive two-way relay network. In our proposed network the primary nodes communicate with each other via an energy constrained intermediate DF relay. The relay node first harvests the energy from the source signals and then uses this harvested power to decode-and-forward these received primary signals to their respective destinations. In addition to primary signals relay also utilizes some portion of the harvested power to transmit its own information signal to a secondary node. Our simulation result shows that the proper setting of energy harvesting and power allocation parameters can significantly improve the overall network throughput. We also show the effect of various system parameters on overall system performance.


Simultaneous wireless information and power transfer (SWIPT) Decode-and-forward relay Cognitive relay networks Wireless energy harvesting Two-way relay network 



This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korean government (MSIP) (2014R1A5A1011478). Prof. Min Young Chung is corresponding author.


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© Springer International Publishing AG 2017

Authors and Affiliations

  1. 1.College of Information and Communication EngineeringSungkyunkwan UniversitySuwon-siSouth Korea

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