Sum throughput maximization for MIMO underlay cognitive wireless powered communication networks

Jaein Kim, Hoon Lee, Changick Song, Taeseok Oh, Inkyu Lee

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

This paper investigates multi-user multi-input multi- output cognitive wireless powered communication networks (WPCN), in which a secondary WPCN shares spectrum with a primary wireless information transfer system. A typical WPCN consists of two different phases. In the first downlink phase, a hybrid access point (H-AP) transfers energy to charge users, and then in the subsequent uplink phase, the users send information by using the harvested energy to the H-AP. We consider underlay cognitive WPCN without cooperation between the primary transmitter and the secondary H-AP. In this case, we formulate sum throughput maximization problem by taking the interference leakage to the primary network into consideration. The problem is generally non-convex due to coupled variables in the WPCN. To tackle this issue, we first convert the problem into equivalent convex form, and then identify the global optimal solution by applying the proposed iterative optimization algorithm. Finally, simulation results demonstrate that the proposed algorithm outperforms conventional schemes.

Original languageEnglish
Title of host publication2016 IEEE Global Communications Conference, GLOBECOM 2016 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781509013289
DOIs
Publication statusPublished - 2017 Feb 2
Event59th IEEE Global Communications Conference, GLOBECOM 2016 - Washington, United States
Duration: 2016 Dec 42016 Dec 8

Other

Other59th IEEE Global Communications Conference, GLOBECOM 2016
CountryUnited States
CityWashington
Period16/12/416/12/8

Fingerprint

MIMO systems
Telecommunication networks
Throughput
Energy transfer
Transmitters

ASJC Scopus subject areas

  • Computational Theory and Mathematics
  • Computer Networks and Communications
  • Hardware and Architecture
  • Safety, Risk, Reliability and Quality

Cite this

Kim, J., Lee, H., Song, C., Oh, T., & Lee, I. (2017). Sum throughput maximization for MIMO underlay cognitive wireless powered communication networks. In 2016 IEEE Global Communications Conference, GLOBECOM 2016 - Proceedings [7842306] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/GLOCOM.2016.7842306

Sum throughput maximization for MIMO underlay cognitive wireless powered communication networks. / Kim, Jaein; Lee, Hoon; Song, Changick; Oh, Taeseok; Lee, Inkyu.

2016 IEEE Global Communications Conference, GLOBECOM 2016 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2017. 7842306.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Kim, J, Lee, H, Song, C, Oh, T & Lee, I 2017, Sum throughput maximization for MIMO underlay cognitive wireless powered communication networks. in 2016 IEEE Global Communications Conference, GLOBECOM 2016 - Proceedings., 7842306, Institute of Electrical and Electronics Engineers Inc., 59th IEEE Global Communications Conference, GLOBECOM 2016, Washington, United States, 16/12/4. https://doi.org/10.1109/GLOCOM.2016.7842306
Kim J, Lee H, Song C, Oh T, Lee I. Sum throughput maximization for MIMO underlay cognitive wireless powered communication networks. In 2016 IEEE Global Communications Conference, GLOBECOM 2016 - Proceedings. Institute of Electrical and Electronics Engineers Inc. 2017. 7842306 https://doi.org/10.1109/GLOCOM.2016.7842306
Kim, Jaein ; Lee, Hoon ; Song, Changick ; Oh, Taeseok ; Lee, Inkyu. / Sum throughput maximization for MIMO underlay cognitive wireless powered communication networks. 2016 IEEE Global Communications Conference, GLOBECOM 2016 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2017.
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