Decentralized Radio Resource Adaptation in D2D-U Networks

Rui Yin, Zheyi Wu, Shengli Liu, Celimuge Wu, Jiantao Yuan, Xianfu Chen

Research output: Contribution to journalArticleScientificpeer-review

18 Citations (Scopus)


Unlike the conventional device-to-device (D2D) networks, the unlicensed D2D (D2D-U) pairs can not only reuse the licensed channels with the base station (BS) but also share the unlicensed channels with the WiFi stations. One challenge arises from the fact that the co-channel interference on licensed channels and the collision probability on unlicensed channels may cause extra power consumption at the terminals. Accordingly, we first propose a channel access method for the D2D-U pairs on unlicensed channels. Then, a decentralized joint spectrum and power allocation scheme is designed to minimize the power consumption at D2D-U pairs. Different from the existing distributed schemes, the proposed scheme can guarantee the global minimization of power consumption across the D2D-U pairs. Simulation results validate the theoretical analysis and verify the performance from the proposed scheme.
Original languageEnglish
Pages (from-to)6720-6732
JournalIEEE Internet of Things Journal
Issue number8
Publication statusPublished - 15 Apr 2021
MoE publication typeA1 Journal article-refereed


  • Decentralized algorithm
  • new radio (NR)
  • radio resource management
  • unlicensed D2D (D2D-U)


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