Abstract
The degrees of freedom region is established for the 2-user multiple-input multiple-output Z-interference channel with an arbitrary number of antennas at each node, under the assumption of delayed channel state information at the transmitters. A new interference alignment scheme is obtained and is shown to be optimal in the degrees of freedom (DoF) metric. When used over an interference channel with one cross-link being statistically weaker than the other three links, this scheme, by explicitly recognizing the relative weakness of that link, can lead to a DoF improvement over the DoF-optimal scheme designed for the fully connected interference channel, while also requiring no feedback of the weak link's channel state information.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: 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.
