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EVM and BER Simulation of an NADC-TDMA Radiophone Influenced by the Operator's Body in Urban Mobile Environments

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Abstract

This paperpresents the performance evaluation of a portable digital radiophoneinfluencedby the operator's body in urban mobile environments, based on the EVM (errorvector magnitude) and BER (bit error rate) simulation. The type of digitalmodulation follows to the NADC-TDMA standard. A new probability densityfunction(pdf) is proposed to describe the statistic of the EVM in an AWGNchannelunder frequency non-selective slowly fading situation. The simulation combinesthe modified Doppler power spectrum (MDPS) method and a gray coding(π/4-DQPSK modulation with square-root raised cosine (SRRC) shaping filter.The performance evaluation based on BER uses an ideal matched-filter-basedreceiver. The results show that the closer of the distance between theradiophone antenna and the operator's head, the poorer of the EVM and BERperformance.

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Authors and Affiliations

  1. Department of Electronics Engineering, Southern Taiwan University of Technology, Tainan, Taiwan, R.O.C

    Fu-Ling Lin

  2. Department of Electrical Engineering, National Cheng Kung University, Tainan, Taiwan, R.O.C

    Huey-Ru Chuang

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  1. Fu-Ling Lin
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  2. Huey-Ru Chuang
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Lin, FL., Chuang, HR. EVM and BER Simulation of an NADC-TDMA Radiophone Influenced by the Operator's Body in Urban Mobile Environments. Wireless Personal Communications 17, 135–147 (2001). https://doi.org/10.1023/A:1008950527476

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