Title :
Performance comparison of frequency flopping and direct sequence spread spectrum systems in the 2.4 GHz range
Author :
Spasojevic, Zoran ; Burns, John
Abstract :
The FHSS and DSSS technologies are described as well as different types of spread coding. DSSS systems can provide higher access data rates (up to 11 Mbit/s) than FHSS systems (up to 3 Mbit/s). More FHSS systems can operate simultaneously in the same area than DSSS systems. DSSS systems have higher interference susceptibility tolerance levels. However, if there is a strong broadband interferer in the operational spectrum, FHSS systems will suffer less due to frequency hopping. Assuming equal transmit powers, DSSS systems have lower power spectral density due to wider operating spectrum. Monte Carlo analysis results show that DSSS systems are more likely to cause interference than FHSS systems. The worst case interference levels are higher when the interferer is an FHSS system. It was shown that this case has a very low probability of occurring
Keywords :
Monte Carlo methods; frequency hop communication; radiofrequency interference; spread spectrum communication; 11 Mbit/s; 2.4 GHz; 3 Mbit/s; DSSS; FHSS; Monte Carlo analysis results; UHF; access data rates; broadband interferer; direct sequence spread spectrum systems; frequency flopping spread spectrum systems; interference susceptibility tolerance levels; operating spectrum; performance comparison; power spectral density; spread coding; transmit power; worst case interference levels; Bluetooth; Frequency; Local area networks; Microwave devices; Microwave ovens; Monte Carlo methods; Power system modeling; Spread spectrum communication; TV broadcasting; TV interference;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2000. PIMRC 2000. The 11th IEEE International Symposium on
Conference_Location :
London
Print_ISBN :
0-7803-6463-5
DOI :
10.1109/PIMRC.2000.881461
