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http://dx.doi.org/10.5515/KJKIEES.2008.19.2.271

A Study on Interference Analysis between FHSS and DSSS Short Range Radio Devices  

Kim, Jin-Young (Department of Wireless Communications Engineering, Kwangwoon University)
Kim, Eun-Cheol (Department of Wireless Communications Engineering, Kwangwoon University)
Yang, Jae-Soo (GyeongGi-Province Office)
Ryu, Chung-Sang (Radio Research Laboratory)
Oh, Seong-Taek (Radio Research Laboratory)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.19, no.2, 2008 , pp. 271-279 More about this Journal
Abstract
In this paper, we investigate interference between short-range radiocommunication devices(SRDs) with frequency hopping spread spectrum(FHSS) and direct sequence spread spectrum(DSSS) methods when they are in the same frequency bands. In order to analyze interference from unwanted emission of SRD with DSSS to that of FHSS, Monte-carlo(MC) simulation method is employed and interference probabilities are calculated. We simulate interference scenarios in accordance with several duty cycles and bandwidths. It is also assumed that the propagation model is free space. The effect of distance between interfering transmitter and victim receiver is analyzed and bit error rate(BER) is simulated. From the interference analysis results, it is shown that duty cycle affects compatibility more than band-width does. Also, we can make sure of the separation distance which satisfies BER criterion when there are only one interfering transmitter and multiple interfering transmitters.
Keywords
Interference; FHSS Short-Range Radio Device; DSSS Short-Range Radio Device; Monte-Carlo Simulation Method; Separation Distance; Interfering Transmitter; Victim Receiver;
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