the use of coherent space-frequency coding in orthogonal frequency division multiplexing (OFDM)-based frequency-selective multiple-input multiple-output (MIMO) antenna fading channels has been proposed. Acquiring knowledge of the fading coefficients in a MIMO channel is already very challenging in the frequency-flat (fast) fading case. In the frequency-selective case, this task becomes significantly more difficult due to the presence of multiple paths, which results in an increased number of parameters to be estimated. In this paper, we address code design for noncoherent frequency-selective MIMO-OFDM fading links, where neither the transmitter nor the receiver knows the channel. We derive the code design criteria

LDPC_matlabcode123\AWGN.m
..................\awgnwithdiversity.m
..................\awgnwithoutdiversity.m
..................\B1.m
..................\B2.m
..................\B3.m
..................\decode_ldpc.m
..................\decodeBitFlip.m
..................\decodeLogDomain.m
..................\decodeLogDomainSimple.m
..................\decodeProbDomain.m
..................\makeLdpc.m

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