FIGURE 11. Performance comparison of FDO-MMSE receiver using different oversampling factors.
performance improves as the oversampling factor increases, but only within a limited range, i.e., M ≤ 6964. Actually, BER performance highly depends on the number of channels paths, i.e., multi path diversity, which can be fully exacted by choosing M ≤ (N +L−1)/N. Since the oversampling process increases computational complexity, the FDO-MMSE receiver only chooses M = (N +L−1)/N when the number of channel path L is known to the receiver.
FIGURE 11. Performance comparison of FDO-MMSE receiver using different oversampling factors.performance improves as the oversampling factor increases, but only within a limited range, i.e., M ≤ 6964. Actually, BER performance highly depends on the number of channels paths, i.e., multi path diversity, which can be fully exacted by choosing M ≤ (N +L−1)/N. Since the oversampling process increases computational complexity, the FDO-MMSE receiver only chooses M = (N +L−1)/N when the number of channel path L is known to the receiver.
การแปล กรุณารอสักครู่..
