Adaptive adjacent-frequency interference mitigation in multi-hop point-to-point FDD wireless backhaul networks

Wei Ni*, Iain B. Collings

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

Adjacent-frequency interference is a critical problem in point-to-point (PTP) frequency division duplex (FDD) wireless backhaul networks. It prevents existing methods from adaptively allocating frequencies to the PTP links, reducing spectrum utilization. We propose a new algorithm which mitigates the interference and enables the frequencies to be allocated adapting to changing traffic demands. Our algorithm is developed on a new recursive guard band adjusting technique. Simulations show that our algorithm is able to improve spectrum utilization by 33%, compared to the prior art, and enhance the network satisfaction regarding allocated bandwidth by over 173%.

Original languageEnglish
Article number6343248
Pages (from-to)1988-1991
Number of pages4
JournalIEEE Communications Letters
Volume16
Issue number12
DOIs
Publication statusPublished - 2012
Externally publishedYes

Keywords

  • frequency allocation
  • metro cell
  • mult-hop point-to-point FDD backhaul

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