期刊名称：International Journal of Engineering and Computer Science
印刷版ISSN：2319-7242
出版年度：2015
卷号：4
期号：10
页码：14866-14872
DOI：10.18535/ijecs/v4i10.41
出版社：IJECS
摘要：Although tremendous progress has made in the past years to eliminate the inter-block interference (IBI) but still it is considered asarea of concern in orthogonal frequency division multiplexing system. We proposed interference alignment based channelindependent precoding in MIMO OFDM system. We showed that when the number of receive antennas (nr) is not more than thenumber of transmit antennas (nt), our proposed precoding is more bandwidth efficient than the conventional zero-padded or CPadded MIMO systems, such as, ZP-only, CP-OFDM and SC-FDE system and When the number of receive antennas is more thanthe number of transmit antennas, it was shown that the IBI in an MIMO OFDM system can be completely eliminated without anyCP or zero-padding or precoding, when the OFDM block size is not too small. In this paper, we consider only CP based blocktransmission system
