Message-Passing Based User Association and Bandwidth Allocation in HetNets with Wireless Backhaul

Hongju Lee, Junhee Park, Sang Hyun Lee, Inkyu Lee

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


This work presents a joint design of user association and resource allocation in a heterogeneous network, which is comprised of a single macro base station and a group of small base stations interconnected through wireless backhaul. In such a configuration, we optimize user association and resource allocation so that the total sum of generalized utilities is maximized. This problem is cast as a combinatorial formulation with a fractional objective. To handle this design challenge, we develop a novel message-passing framework to obtain an efficient joint autonomous solution for user association and resource allocation. The simulation results show that the proposed algorithm outperforms existing techniques with various network utility functions.

Original languageEnglish
Pages (from-to)704-717
Number of pages14
JournalIEEE Transactions on Wireless Communications
Issue number1
Publication statusPublished - 2023 Jan 1

Bibliographical note

Publisher Copyright:
© 2002-2012 IEEE.


  • Message-passing algorithm
  • bandwidth allocation
  • heterogeneous network (HetNet)
  • user association

ASJC Scopus subject areas

  • Applied Mathematics
  • Electrical and Electronic Engineering
  • Computer Science Applications


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