Signal detection for EST based modulation in Doubly-selective channels

  • Authors:
  • Jaeho Lee;Taewon Hwang;Ye Li

  • Affiliations:
  • School of Electrical and Electronic Engineering, Yonsei University, Seoul, Korea;School of Electrical and Electronic Engineering, Yonsei University, Seoul, Korea;School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, GA

  • Venue:
  • IEEE Transactions on Signal Processing
  • Year:
  • 2009

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Abstract

The energy spreading transform (EST) based modulation with iterative signal detection has been shown to perform very close to the matched filter bound (MFB) for time-invariant or slow time-varying channels with signal-to-noise ratio over a threshold. However, for fast time-varying channels, the original equalization alone is not adequate. In this correspondence, we extend the EST-based approach to doubly-selective channels, that is, time-varying and frequency-selective channels. Our simulation results show that the extended approach has significant performance for doubly-selective channels.