Doubly Constrained Robust Blind Beamforming Algorithm

Table 1

The complexity cost of the conventional LSCMA.

	The complexity cost
𝐑𝐾	𝑂(𝑀^2×𝐾)
𝐑𝐾^−1	𝑂(𝑀^3)
𝛿	𝑂(2𝑀^2+𝑀×𝐾+2𝑀+𝐾+1)
𝐑𝐾^−1𝐗𝐾𝐞^H	𝑂(𝑀^2×𝐾+𝑀×𝐾)
𝐑𝐾^−1𝐚(𝜃0)𝛿	𝑂(𝑀^2+𝑀)
Total complexity cost	𝑂(𝑀^3+(2𝐾+3)×𝑀^2+(2𝐾+3)×𝑀+𝐾+1)