Figure 4
From: Interference-aware receiver structure for multi-user MIMO and LTE
Downlink fast fading channel with the dual-antenna eNodeB and two single-antenna UEs. IA Rx indicates the low-complexity interference-aware receiver while SU Rx indicates the single-user receiver. MU MIMO and SU MIMO indicate multi-user and single-user MIMO, respectively. To be fair in comparison among different schemes, sum rates are fixed, i.e., if two users are served with QPSK with rate 1/2 in the multi-user mode, then one user is served with QAM16 with rate 1/2 in the single-user mode thereby equating the sum rate in both cases to 2 bps/Hz. 3GPP LTE rate 1/3 turbo code is used with different puncturing patterns.