Title :
Performance of radio communication systems under microwave oven interference environment
Author :
Miyamoto, Shinichi ; Morinaga, Norihiko
Author_Institution :
Dept. of Commun. Eng., Osaka Univ., Japan
Abstract :
The effect of microwave oven interference on the performance of several digital radio communications systems (PDC, PHS, ISM-band wireless LAN) is investigated. First, we measure the interference emitted from microwave ovens and it is shown that a high level interference is emitted from microwave ovens and its emission interval is matched with the powerline cycle. By using the measurement results, the performance of π/4-shift QDPSK and DS/CDMA systems are evaluated. Numerical results show that the performance of π/4-shift QDPSK is degraded by the effect of microwave oven interference. Moreover, it is shown that, for the case of the TDMA multiple access scheme, since the high level interference is emitted periodically, the specified channel suffers from the high level interference
Keywords :
access protocols; code division multiple access; differential phase shift keying; digital radio; domestic appliances; land mobile radio; ovens; pseudonoise codes; quadrature phase shift keying; radiofrequency interference; spread spectrum communication; time division multiple access; wireless LAN; π/4-shift QDPSK; DS/CDMA systems; ISM-band wireless LAN; PDC; PHS; TDMA; digital radio communications systems; emission interval; emitted interference measurement; microwave oven interference; performance; powerline cycle; radio channel; Land mobile radio interference;
Conference_Titel :
Electromagnetic Compatibility Proceedings, 1997 International Symposium on
Conference_Location :
Beijing
Print_ISBN :
0-7803-3608-9
DOI :
10.1109/ELMAGC.1997.617148
