Single carrier frequency domain equalization based selection feedback detecting method
A single-carrier frequency domain, feedback detection technology, used in multi-frequency code systems, baseband system components, shaping networks in transmitters/receivers, etc.
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[0032] The basic idea of the selective feedback detection method based on single-carrier frequency domain equalization is: according to the determined channel model and time domain feedback order, by calculating and comparing the average MMSE in various feasible feedback modes, select the one that minimizes the average MMSE Tap the feedback position to construct the filter with feedback. Then optimize the tap coefficients in the frequency domain and time domain according to the MMSE criterion, and use the filter formed by the tap coefficients to detect the sign information of the current data block. Depending on whether the structure of the time domain filter is fixed, the selective feedback detection methods based on single carrier frequency domain equalization can be divided into non-adaptive selective feedback detection and adaptive feedback detection methods.
[0033] Here it is assumed that the system has N T root transmit antenna, N R Root receiving antenna. The sou...
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