Energy Efficiency Analysis of MISO-OFDM Communication Systems Considering Power and Capacity Constraints

Xiaohu Ge, Jinzhong Hu, Cheng Xiang Wang, Chan Hyun Youn, Jing Zhang, Xi Yang

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

In this paper, the energy efficiency of multi-input single-output and orthogonal frequency division multiplexing (MISO-OFDM) communication systems with power and capacity constraints is investigated. By formulating the power allocation problem of MISO-OFDM communication systems, the minimum subchannel transmission power is analyzed with power and capacity constraints. Simulation results indicate that there exists a specific minimum subchannel capacity threshold. Moreover, the energy efficiency of MISO-OFDM communication systems starts to increase only when the minimum subchannel capacity exceeds the specific threshold. © 2011 Springer Science+Business Media, LLC.

Original languageEnglish
Pages (from-to)29-35
Number of pages7
JournalMobile Networks and Applications
Volume17
Issue number1
DOIs
Publication statusPublished - 25 Feb 2011

Keywords

  • capacity analysis
  • energy efficiency
  • multi-input single-output (MISO)
  • orthogonal frequency division multiplexing (OFDM)

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