Open AccessBlind interference alignment tracking for two‐way interference channel
Author(s) -
Ma Shuai,
Sun Dechun,
Su Yuping
Publication year - 2014
Publication title -
iet communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.355
H-Index - 62
eISSN - 1751-8636
pISSN - 1751-8628
DOI - 10.1049/iet-com.2013.0339
Subject(s) - interference (communication) , interference alignment , computer science , channel (broadcasting) , zero forcing precoding , co channel interference , adjacent channel interference , tracking (education) , telecommunications , computer vision , artificial intelligence , precoding , mimo , psychology , pedagogy
In this study, the authors propose a novel blind adaptive minor subspace tracking interference alignment (BAMST‐IA) scheme for slowly fading two‐way interference channel. In this scheme, a new frame structure is designed to exploit the dependency of the channels between consecutive fading blocks. Then, the IA problem is reformulated as a minor subspace tracking problem, and the low computational complexity fast data projection method algorithm is integrated with the BAMST‐IA scheme to update the IA solutions. Moreover, the update uses only observed data without any channel state information, thus requires lower signalling overhead. Simulation results are presented to show that the proposed BAMST‐IA scheme is fit for slowly fading channels.