The AED algorithm for RIR estimation is a computationally complex algorithm with complexity of O ( N 2 ).
This part is maybe most computationally complex part of the whole calculation, and the major computational load complexity to acquire L sp is calculated as [19 21].
Finally, note that all the computationally complex stages of, and do not depend on and therefore their complexity is the same as in [23].
There exist many low complexity MU-MIMO scheduling algorithms since the optimal scheduling scheme is too computationally complex to be used in the practical systems [3, 4, 9 12].
Running this process is extremely computationally demanding, the complexity of which is not straightforward to estimate [2], but can approach (O(n^2)).
The optimal SAPA algorithm presented above jointly optimizes the SAPA, but it is computationally costly (its complexity is analyzed in Section 7).. Generalizing the proof given in [26] for multi-band CRN, the maximum capacity in the downlink can be obtained when each sub-carrier is assigned to the user that has the best channel gain.
Although mean shift is a good technique to find the dominant modes, it is computationally intensive (time complexity: O(Tn2), where T is the number of iterations, and n is the number of features) and sensitive to parameters like the Gaussian kernel bandwidth.
For example, the human genome sequence, while quite large in size, could be easily processed computationally if its complexity allowed us to describe how exactly it needs to be analyzed.
Furthermore, since model fitting in dynamic causal modelling is computationally demanding, the complexity of dynamic causal models is limited to structural models comprising up to eight regions (Penny et al., 2004 b ).
