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Blind adaptive detection using approximate oblique projector for synchronous DS/CDMA communication
Author(s) -
Nagase Ryudo,
Oishi Kunio,
Furukawa Toshihiro
Publication year - 2019
Publication title -
ieej transactions on electrical and electronic engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.254
H-Index - 30
eISSN - 1931-4981
pISSN - 1931-4973
DOI - 10.1002/tee.23004
Subject(s) - code division multiple access , subspace topology , computer science , single antenna interference cancellation , detector , algorithm , projector , electronic engineering , computer vision , artificial intelligence , telecommunications , engineering
This article presents a blind adaptive detector based on an approximate oblique projector (AOP) for interference cancellation in direct‐sequence code‐division multiple‐access (DS/CDMA) system. An expression for obtaining the AOP from the inverse of the correlation matrix of received signals without a prior knowledge about the structured interference subspace is derived. Applying the matrix inversion lemma to compute the inverse of the correlation matrix is useful for updating the AOP. Simulation results demonstrate that the proposed blind adaptive detector is suitable for a dynamic environment. © 2019 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.