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

Authors:
Fu-Ling Lin;Huey-Ru Chuang
Affiliations:
Department of Electronics Engineering, Southern Taiwan University of Technology, Tainan, Taiwan, R.O.C.;Department of Electrical Engineering, National Cheng Kung University, Tainan, Taiwan, R.O.C.
Venue:
Wireless Personal Communications: An International Journal
Year:
2001

Citing 2
Cited 1

RF and Microwave Circuit Design for Wireless Communications

RF and Microwave Circuit Design for Wireless Communications
Microwave Mobile Communications

Microwave Mobile Communications

Error vector magnitude to SNR conversion for nondata-aided receivers

IEEE Transactions on Wireless Communications

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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.