Computer Science

Computer Science ›› 2022, Vol. 49 ›› Issue (7): 280-286.doi: 10.11896/jsjkx.210400067

• Computer Network • Previous Articles     Next Articles

Power Consumption Scheme Oriented to Full-duplex Multi-relay Cooperative SWIPT Networks

SHAN Yong-feng1,2, JIANG Rui1,2, XU You-yun2, LI Da-peng1,2   

  1. 1 College of Telecommunications and Information Engineering,Nanjing University of Posts and Telecommunications,Nanjing 210003,China
    2 National Engineering Research Center for Communication and Network Technology,Nanjing University of Posts and Telecommunications,Nanjing 210003,China
  • Received:2021-04-07 Revised:2021-09-04 Online:2022-07-15 Published:2022-07-12
  • About author:SHAN Yong-feng,born in 1996,postgraduate.His main research interest is simultaneous wireless information and power transfer.
    JIANG Rui,born in 1985,Ph.D,asso-ciate professor.His main research inte-rests include simultaneous wireless information and power transfer and wireless communications.
  • Supported by:
    National Key Research and Development Program (2016YFE0200200),National Natural Science Foundation of China(61801240),Research Project of Nanjing University of Posts and Telecommunications(NY220008) and Simultaneous Wireless Information and Power Transfer Technology and Device for the Project in Qixia District,Nanjing.

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Abstract: In full-duplex multi-relay cooperative simultaneous wireless information and power transfer (SWIPT) networks,traditional relay selection algorithms have not taken into account the idle utilization of unselected relays.As a result,the performance waste of the network becomes more serious as the number of relays increases.How to exploit the remaining potential of unselec-ted relays becomes the key to improve network performance.For this,a new HTT (Harvest then Transmit) power consumption scheme is proposed,which increases the transmit power of the selected relay by making full use of the energy harvesting module at the relay,thereby further improving the system capacity.In addition,for the proposed HTT power consumption scheme,two practical scenarios,BIKT (Battery Information Known at Transmitter) and BIUT (Battery Information Unknown at Transmitter) are considered.The result of simulation experiments show that three relay selection algorithms,namely single relay selection,greedy relay selection and exhaustion search,can effectively benefit from the proposed HTT power consumption scheme in terms of system capacity and outage probability whether applied to BIKT scenarios or BIUT scenarios.

Key words: Full-duplex, Power splitting, Relay cooperation, Relay selection, Simultaneous wireless information and power transfer

CLC Number: 

  • TN915
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