Experimental and theoretical evaluation of interference characteristics between 2.4-GHz ISM-band wireless LANs

Wireless LANs in the 2.4-GHz ISM-band create a new electromagnetic compatibility (EMC) problem. We investigated the interference characteristics between such wireless LANs in the case of identical systems, systems with different technical parameters for modulation and demodulation, and using a Gaussian noise source as a disturbance source. Experimental results show that higher throughput is obtained when adjacent wireless LANs use different systems, and that interference characteristics can be evaluated experimentally using a Gaussian noise source. Calculated BER characteristics for the interference agree with experimental measurements, indicating that this calculation method can be used for the design of the wireless LAN network to avoid interference. It is possible to construct an efficient wireless LAN network by combining different wireless LAN systems.1998 International Symposium on Electromagnetic Compatibility, 24-28 August, 1998, Denver, CO, US