Interference Analysis of OFDMA Based Distributed Network Architecture

The inter-cell interference of orthogonal frequency division multiple access (OFDMA) based multi-cell distributed network architecture is analyzed. Based on generalized distributed cellular architecture-group cell, the interference condition without power control and with power control is analyzed respectively, and the system outage probability compared to traditional cellular structure is evaluated. Analyses and simulation results indicate that the inter-cell interference of group cell architecture does not increase more than traditional cellular structure. Moreover, the system resources of group cell architecture are centralized scheduled and allocated by the access point (AP), which makes it flexible to apply centralized SRA power control algorithm to improve the system performance further.