Multiantenna Analog Network Coding for Multihop Wireless Networks

Figure 7

Performance of transmit antenna selection for TDD-based MMSE-BAF system with 4 antennas at the base-station. User-1 employs QPSK modulation whereas user-2 employs 16-QAM modulation. An uncoded system is considered with realistic channel estimation over block fading channels with 20 pilot and 100 data symbols per fading block.