Energy-saving massive access control and resource allocation schemes for M2M communications in OFDMA cellular networks

Chieh Yuan Ho*, Ching-Yao Huang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

98 Scopus citations

Abstract

Machine-to-Machine communication recently becomes a popular issue in 4G Standardization Committee, such as IEEE 802.16p and LTE-A. In an OFDMA cellular network embedded with a M2M system, the energy consumption (EC) minimization problem is formulated with the consideration of transmission and circuit energy consumed. We propose joint massive access control and resource allocation (RA) schemes, which perform machine node grouping, coordinator selection, and coordinator RA, and also determine the proper number of groups under a 2-hop transmission protocol, to minimize total EC in both flat- and frequency-selective fading channel. Numerical results show that proposed schemes can achieve sub-optimal EC.

Original languageEnglish
Article number6175028
Pages (from-to)209-212
Number of pages4
JournalIEEE Wireless Communications Letters
Volume1
Issue number3
DOIs
StatePublished - 1 Jun 2012

Keywords

  • energy-saving
  • M2M
  • Machine-to-machine
  • MTC
  • OFDMA
  • resource allocation

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