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摘要
The theoretical performance of massive multiple-input multiple-output (MIMO) depends on the favorable propagation condition (FPC), where user channels are asymptotically orthogonal. Recent researches have demonstrated that the FPC could be approached in real propagation scenarios, while the gap between a real propagation channel and the ideal channel has not been further modeled. This letter proposes an empirical formula for the ratio of sum rate capacity to its upper bound based on field measurement in indoor and outdoor scenarios. The formula has a simple expression with the number of antennas in the array, the number of users and a scenario-dependent parameter. The proposed formula could be employed to evaluate the "favorable" extent for the massive MIMO channel.
- 出版日期2017-12
- 单位北京交通大学
