60 GHz wireless data center channel measurements: Initial results

This paper reports initial results of wireless data center (WDC) 60 GHz radio channel measurements in a real data center. A channel sounder based on a vector network analyzer is used to measure the channel transfer function. In addition, ray-tracing simulations are conducted to verify the measurements accuracy. Data post processing procedure is presented to derive the power delay profiles (PDP). PDPs are processed using a peak detection algorithm for quick clusters enumeration. Two measurement sets are considered, namely neighbor racks scenario set and cross aisle scenario set. It is found that ray-tracing simulations results show a reasonable agreement for both sets. Cluster number and path loss results exhibit a slight difference for the two sets. Moreover, path loss results of neighbor racks scenarios show a 3 dB better link budget compared to cross aisle scenarios.