Linear Space-Time Multiuser Detection
As seen in Section 5.3, the optimal
space-time multiuser detection algorithm typically has a prohibitive
computational complexity. In this section we discuss linear space-time multiuser
detection techniques that mitigate this complexity significantly. To consider
such detectors we will assume for now that the receiver has knowledge of the
spreading waveforms and the channel parameters of all users. The method
discussed here is based on iterative interference cancellation and has a low
computational complexity. For comparison, we also discuss single-user-based
linear space-time processing methods.
Sections
