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Table 2 Complexity comparison of the suggested DFT-based cell ID estimator with [1214], in a number of complex multiplications

From: DFT-based low-complexity optimal cell ID estimation in NB-IoT

 Cell IDChannel
Exhaustive ML [12]266112N/A
[13]66528N/A
[14]16632N/A
Suggested ML<73856(1)4032
  1. Notes: (1) This value is a loose upper bound of the achievable complexity. Such as aforementioned, this could be reduced by 8, namely 9232