Energy splitting for swipt in Qos-constraint MTC network: A non-cooperative game theoretic approach

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Abstract

This paper studies the emerging wireless energy harvesting algorithm dedicated for machine type communication (MTC) in a typical cellular network where one transmitter (e.g. the base station, a hybrid access point) with constant power supply communicates with a set of users (e.g. wearable devices, sensors). In the downlink direction, the information transmission and power transfer are conducted simultaneously by the base station. Since MTC only transmits several bits control signal in the downlink direction, the received signal power can be split into two parts at the receiver side. One is used for information decoding and the other part is used for energy harvesting. Since we assume that the users are without power supply or battery, the uplink transmission power is totally from the energy harvesting. Then, the users are able to transmit their measured or collected data to the base station in the uplink direction. Game theory is used in this paper to exploit the optimal ratio for energy harvesting of each user since power splitting scheme is adopted. The results show that this proposed algorithm is capable of modifying dynamically to achieve the prescribed target downlink decoding signal-to-noise plus interference ratio (SINR) which ensures the high reliability of MTC while maximizing the uplink throughput.

Original languageEnglish
Pages (from-to)105-116
Number of pages12
JournalInternational Journal of Computer Networks and Communications
Volume10
Issue number5
DOIs
Publication statusPublished - 2018 Sep 1

Keywords

  • Decoding SINR
  • Energy harvesting
  • Uplink throughput maximization

ASJC Scopus subject areas

  • Hardware and Architecture
  • Computer Networks and Communications

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