Computationally Efficient MIMO Demodulation
نویسندگان
چکیده
It is shown that multiple complementary techniques for trading BER performance for cost reduction in the Viterbi algorithm for multipleinput/multiple-output joint demodulation can be merged to obtain substantial and efficient cost reduction. Quantitative results for application to the separation of GSM cochannel signals are presented. It is shown that up to six signals can be separated at a GSM basestation with BER of 10% before decoding gain with only a single dual-polarized antenna and Eb/No = 10dB in real time on a Compaq 1GHz ES-40 server, with cost savings factors up to 8700. It is also shown that for a specified BER and number of signals, the cost of MIMO demodulation decreases as the number of sensors increases.
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