Building Wireless Performance Evaluation of Channel Hardening for Massive MIMO System

This letter proposes the first building wireless performance evaluation scheme considering channel hardening for an indoor massive multiple-input multiple-output (MIMO) system. We first define a metric, channel hardening obstruction (CHO), to describe the expectation value change of channel hardening ratio that a building under design (BUD) brings about. Then, the closed-form expressions are derived for the defined metric. Finally, we carry out Monte-Carlo simulations to validate the proposed scheme under various indoor scenarios, indicating the correlation between the CHO and BUD's room amount. The proposed evaluation scheme can be used to design new or retrofit existing buildings with adequate massive MIMO performance.

Automated summary

This letter proposes the first building wireless performance evaluation scheme considering channel hardening for an indoor massive MIMO system. A metric called channel hardening obstruction (CHO) is defined to describe the expectation value change of channel hardening ratio brought about by a building under design (BUD). Closed-form expressions for the defined metric are derived. Monte-Carlo simulations validate the proposed scheme under various indoor scenarios, demonstrating the correlation between CHO and BUD's room amount. The proposed evaluation scheme can be used to design new or retrofit existing buildings with adequate massive MIMO performance.