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Table 1 Complexity comparison with different algorithms

From: An efficient beam-training scheme for the optimally designed subarray structure in mmWave LoS MIMO systems

Algorithms

Number of Training

Parameters

N=2

N=4

Equation (23)

NL 2

L=32

2048

4096

Algorithm 1 in [25]

(K t +K r +K 2)N

\(\begin {array}{c} {K_{t}}=8\\ {K_{r}}=8 \\ K = 4 \end {array}\)

64

128

Algorithm 2 in [25]

K t +K r +K 2 N

 

48

80

Proposed Algorithm

(N+M)JB j

\(\begin {array}{c} {B_{j}} = 2\\ J = 5\end {array}\)

40

80