A Low Complexity Near-Optimal MIMO Antenna Subset Selection Algorithm for Capacity Maximisation

Table 3

Complexity in real flops for the proposed and other algorithms.

Sl. no.	The name of algorithm	The complexity in real flops for more than 1 antenna	For single antenna
1	Proposed	4𝑀𝑇𝑀^2𝑅+4𝑀𝑇𝑀𝑅−0.5𝑀^2𝑅−3.5𝑀𝑅	8𝑀𝑇𝑀𝑅−4𝑀𝑅
2	Molisch et al. [6]	4𝑀𝑇𝑀^2𝑅+4𝑀𝑇𝑀𝑅−2𝑀^2𝑅−2𝑀𝑅	Same as the previous column
3	Gharavi-Alkhansari and Gershman [11]	(16𝑀𝑇𝑀𝑅+14𝑀^2𝑇+4𝑀𝑇𝐿𝑅+2𝑀𝑇−8𝑀𝑅+2𝐿𝑅−2)𝐿𝑅−1	8𝑀𝑇𝑀𝑅−4𝑀𝑅