Abstract
In this paper, the general channel estimator for MIMO OFDM is derived and MM algorithms are used to reduce computational complexity. The first M of MM stands for majorization (minorization) and the second M stands for minimization (maximization). It's well known that EM algorithms are powerful tools for channel estimation using iterative calculation. Indeed, every EM-type algorithm is a special case of the more general class of MM algorithms. To construct an EM-type algorithm is skillful and complicated. In contrast, the MM algorithms are easier to be understood and applied. In addition to constructing channel estimation algorithms based on the MM principle we also analyze the convergence property of the MM-type algorithms. Finally, the simulation results demonstrate the performance of MM-type channel estimation algorithms.
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.
