Layered Capacity-Based Relay-and-Antenna Joint Selection for MIMO-AF-Multiple-Relay Systems in Correlated Channels

Figure 2

System-capacity performance comparisons of various relay antenna selection algorithms in terms of the number of candidate relays N for an AF-MIMO multiple-relay system with the use of [𝑁_S,  𝑁_R,𝑁_D,   K] = [10,2,10,4] and the (a) low and (b) high spatial-correlation scenarios under either an optimal or equal-power allocation.

(a)

(b)