Abstract
We consider 2×2 X channels with 2M antennas at each node where each transmitter has local channel state information at transmitter (CSIT) and each receiver has full channel state information at receiver (CSIR). We propose an interference alignment (IA) scheme that achieves both the optimal degrees of freedom (DoF) of 8M/3 and the diversity order of 2 using stacked Alamouti codes. Particularly, the proposed IA scheme requires the fixed number of channel uses, regardless of the number of antennas, whereas the numbers of channel uses in the existing schemes increase linearly with the number of antennas.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.