The Effect of Interference Evaluation Between LTE Mobile Stations and McWill Technology

Abstract

In this article the radius of cell for the Multi-Carrier Wireless Information Local Loop (McWill) system in the downlink channel has been defined. To evaluate the interference between the LTE system and McWill in the adjacent frequency channel, it is necessary to take into account the formation of frequency channels for both systems. Frequencies of the carriers for the uplink and downlink are defined with the help of the LTE (E-UTRA) absolute radio frequency channel (EARFCN) in the range 0 – 262143 Hz. A probabilistic estimation of the McWill’s continuous operation for the several channels using the Monte-Carlo model of the uniform distribution of the IMT mobile stations has been performed. The results of a decrease in the spectral efficiency of the McWill system downlink due to interference from LTE mobile stations are presented. It should be noted that for the 5 MHz operation mode probability’s degradation is less rapid. The obtained results indicate that it should be used carriers started from the index 3 for McWill bandwidth for 1 MHz operation mode in the downlink channel. For 5 MHz operation, mode carrier's index limitation is absent.