Analysis of Possible Interference Effects Minimization in IEEE 802.11ax Network by Partial Allocation of Resource Units

Abstract

Statement of the problem: one of the main tasks in IEEE 802.11 networks planning is adjacent channel interference mitigation. The purpose of the work is to synthesize a model and analyze the possibility of adjacent channel effects minimization by partial allocation of OFDMA resource units allocation. Methods used: mathematical analysis methods and spectrum modeling. Novelty: in contrast to the existing approaches, quantative estimations of data rate gain has been calculated and a corresponding step-by-step method has been proposed. Result: in this paper an analysis of partial allocation of resourve units within IEEE 802.11ax channel has been carried out. A model of the adjacent channel interference has been proposed, where signal to noise ratio is estimated via spectrum calculation of target and interferer signals. The model parameters range is estimated which corresponds to the gain of total multi user data rate gain in comparison to full target channel resource units utilization. Theoretical and practical relevance: method may be used to additional increase of total data rate in multi user channel operation mode in case of IEEE 802.11 networks interference presence.