The advantage is less computing. And reusing the downlink IFFT module can save hardware resource.
这样的好处是运算量少,而且复用了下行的IFFT模块,节省硬件资源。
2
In the scheme, the inverse fast Fourier trans form (IFFT) is used as a way of inverse multiplexing.
在这个方案中,IFFT的作用可以看作是反向复用。
3
The radix-2 decimation-in-time algorithm based on 16-bit fixed-point operation and pipeline architecture are adopted in the core module IFFT(Inverse Fast Fourier Transform).