On the interference analysis between terrestrial cellular and multiple airborne wireless networks

In this paper we assess the impact of the on-board base station emissions, on terrestrial mobile station. The scenario consists of multiple interfering links (multiple aircrafts). The results showed that there is visibility of the on-board networks in terms of noise floor increase especially for GSM-1800 MHz networks, and the output of the base station should be adjusted below 5 dBm, if we want to prevent co-channel interference. The results for UMTS-2100 MHz or UMTS-1800 MHz networks showed that there is no need for extra attenuation unless the aircraft base station transmits power more than 15 dBm. In order to keep the noise floor increase at 1 dB, for GSM-1800 MHz network, the total interference received from the multiple on-board base stations should be reduced about 24.5 dB. Finally, we found that the noise floor increase can be modelled with the Nakagami-m distribution; moreover, the m-factor is proportional to the increase of the aircraft base station power following an exponential relationship.