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

Table 2

Complexity in complex flops for the proposed and other algorithms.

Sl. no.	The name of algorithm	The complexity in complex flops for more than 1 antenna	For single antenna
1	Proposed	𝑀𝑇𝑀^2𝑅+𝑀𝑅𝑀𝑇+𝑀^2𝑅−2𝑀𝑅	2𝑀𝑅𝑀𝑇−𝑀𝑅
2	Molisch et al. [6]	𝑀𝑇𝑀^2𝑅+𝑀𝑅𝑀𝑇−12𝑀^2𝑅−12𝑀𝑅	Same as the previous column
3	Gharavi-Alkhansari and Gershman [11]	2𝑀𝑅𝑀𝑇−𝑀𝑅+(4𝑀^2𝑇−𝑀𝑇+4)𝐿𝑅−1+(2𝑀𝑇𝑀𝑅+𝑀𝑅)𝐿𝑅−1	2𝑀𝑅𝑀𝑇−𝑀𝑅