Abstract:
A coding and modulation scheme is studied for transmitting information
over multi-input, multi-output (MIMO) fading channels. The scheme
combines the MIMO detector and the variable node decoder of a
low-density parity-check (LDPC) code. Good LDPC degree sequences are
designed by using extrinsic information transfer (EXIT) charts. The
combined coding/modulation method performs within about 1dB of MIMO
capacity and outperforms a UMTS standard parallel concatenated (turbo)
coding scheme by a wide margin when there are more transmit than
receive antennas.
Status:
Submitted to IEEE Transactions on Communications, June 2002.
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