Cross-Layer Optimization for Cooperative Content Distribution in Multihop Device-to-Device Networks

Chen Xu, Junhao Feng, Zhenyu Zhou*, Jun Wu, Charith Perera

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)


With the ubiquity of wireless network and the intelligentization of machines, Internet of Things (IoT) has come to people's horizon. Device-to-device (D2D), as one advanced technique to achieve the vision of IoT, supports a high speed peer-to-peer transmission without fixed infrastructure forwarding which can enable fast content distribution in local area. In this paper, we address the content distribution problem by multihop D2D communication with decentralized content providers locating in the networks. We consider a cross-layer multidimension optimization involving frequency, space, and time, to minimize the network average delay. Considering the multicast feature, we first formulate the problem as a coalitional game based on the payoffs of content requesters, and then, propose a time-varying coalition formation-based algorithm to spread the popular content within the shortest possible time. Simulation results show that the proposed approach can achieve a fast content distribution across the whole area, and the performance on network average delay is much better than other heuristic approaches.

Original languageEnglish
Article number8013025
Pages (from-to)278-287
Number of pages10
JournalIEEE Internet of Things Journal
Issue number1
Publication statusPublished - 2019 Feb
Externally publishedYes


  • Coalition formation game
  • content distribution
  • cross-layer optimization
  • device-to-device (D2D)
  • multihop transmission

ASJC Scopus subject areas

  • Signal Processing
  • Information Systems
  • Hardware and Architecture
  • Computer Science Applications
  • Computer Networks and Communications


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