An incremental hop selection scheme for amplify-and-forward multi-hop networks

Bumsoo Lee, Chungyong Lee

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


This letter proposes an incremental hop selection (IHS) scheme which improves network coverage while preventing spectral efficiency loss in half-duplex amplify-and-forward (HD-AF) protocol based multi-hop networks (MHNs). In contrast to the fixed N-hop networks, the proposed IHS scheme increases the number of hops only when the current selected path cannot support a performance threshold. Since the proposed scheme uses minimal time phases to satisfy the constraint, the spectral efficiency can be improved. Furthermore, we evaluate the outage probability and average spectral efficiency performance over Nakagami-m fading channel. The simulation results show that the proposed scheme outperforms the existing multiple relay schemes and the derived evaluations are valid.

Original languageEnglish
Article number6574313
Pages (from-to)1726-1729
Number of pages4
JournalIEEE Communications Letters
Issue number9
Publication statusPublished - 2013

All Science Journal Classification (ASJC) codes

  • Modelling and Simulation
  • Computer Science Applications
  • Electrical and Electronic Engineering


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