Exact(8)
Let the output of the freq-domain approach block be b l = G c l, (1).
This feature inspires us to develop a new approach, block building programming (BBP).
To reduce the average frame processing time of the proposed approach, block size 8 × 8 is recommended.
Let the output of the 'time-domain approach' block be x l = HFG c l + ϵ l, (3).
Finally, s l goes through the 'time-domain approach' block, where the time-domain OOBE suppression schemes could be applied.
Then, each vector first goes through the 'freq-domain approach' block, where the frequency-domain OOBE suppression schemes (including precoding and symbol mapping techniques) could be applied.
In this approach, block matching is combined with singular value decomposition to handle the noisy coefficients in high-frequency scales based on local and non-local similarity.
A filtering method is proposed in [8] to suppress the OOBE by inserting a transmitting filter p tx = p tx 1 p tx 2 … p tx L p T in the time-domain approach block and a receiving filter p rx = p rx 1 p rx 2 … p rx L p T in the time-domain recovery block, where L p is the filter length.
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