A real-time channel evaluation technique for AFH/MSK based on SNR estimation and prediction

  • Authors:

  • Zhang Desheng;Yue Chenxi;An Jianping

  • Affiliations:

  • Research Institute of Communication Technology, Beijing Institute of Technology, Beijing, P. R. China;Research Institute of Communication Technology, Beijing Institute of Technology, Beijing, P. R. China;Research Institute of Communication Technology, Beijing Institute of Technology, Beijing, P. R. China

  • Venue:
  • WiCOM'09 Proceedings of the 5th International Conference on Wireless communications, networking and mobile computing
  • Year:
  • 2009

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Abstract

There is a need in Adaptive Frequency Hopping (AFH) communication systems to make a channel evaluation without the use of special transmissions and without interrupting traffic flow. Previous research shows that the method of estimating pseudoerror rate provides an option of Real-time Channel Evaluation (RTCE) in AFH/DQPSK and AFH/MFSK system. This paper describes a RTCE technique based on Signal-to-noise Ratio (SNR) estimation and prediction, which is applicable to not only continuous phase modulation but also noncontinuous phase modulation, e.g. Minimum frequency-Shift Keying (MSK).