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Massive MIMO Downlink Goodput Analysis With Soft Pilot or Frequency Reuse

We propose a unified framework to analyze the downlink performance of massive multiple-input-multiple-output networks with soft pilot reuse and soft frequency reuse, respectively. Both schemes have different tradeoffs between interference mitigation and data transmission opportunities. Considering randomness of interference power, we derive the asymptotic closed-form expression of the average goodput, measuring the average number of bits successfully delivered to the users, for both reuse schemes as the performance comparison metric.