Controlling Initial and Final Radii to Achieve a Low-Complexity Sphere Decoding Technique in MIMO Channels

Figure 2

BER versus initial radius of SE-SD algorithm when 𝑃=4,𝑀=64. (a) 𝜌=18.4dB, (b) 𝜌=21.46dB, (c) 𝜌=24dB.

(a)

(b)

(c)