Open AccessNear‐optimal practical convergent method for interference alignment in MIMO interference channels
Author(s) -
Zhu Yazhou,
Tao Yang
Publication year - 2016
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
eISSN - 1350-911X
pISSN - 0013-5194
DOI - 10.1049/el.2016.1796
Subject(s) - interference (communication) , jacobian matrix and determinant , computation , algorithm , matrix (chemical analysis) , computer science , residual , mimo , simple (philosophy) , interference alignment , mathematics , mathematical optimization , telecommunications , channel (broadcasting) , philosophy , materials science , epistemology , composite material
A practical distributed Gauss–Newton method for the near‐optimal computation of interference alignment solutions is proposed, based on the block‐wise structure of Jacobian matrix of the residual interference function. Also, a simple practical matrix inverse computation algorithm to solve the rank‐deficient problem due to the interference sparse matrix is adopted. This proposal achieves convergent performance comparable to centralised Gauss–Newton method, with the major advantage of being practically implemented in a distributed manner.