Multiple-input multiple-output (MIMO) wireless communication system exploits the multiple spatial channels to achieve higher data rate or improved performance in multipath fading environment. Different types of diversity techniques such as temporal, frequency, code and spatial have been developed in the literature. In addition to the destructive multipath nature of wireless channels, frequency ...

In current communication system, high quality audio signal is supposed to be provided with low bit rate and low computational complexity. This paper proposed a novel audio coding bandwidth extension method, which can improve decoded audio quality with increasing only a few coding bits per frame and a little computational complexity. This method calculate high-frequency synthesis filter by using...

This paper discusses non-separable 2-D filter banks with diamondshape support. The frequency spectrum partitioning is shown to have higher theoretical coding gain than that of the conventional separable approach in image coding application. However, based on the frequency response structure of the subband filters, they can not be implemented with good frequency characteristic although the passb...