Title :
Degrees of freedom region of three-user MIMO interference channels
Author :
Lu Yang ; Wei Zhang ; Jafar, Syed A.
Author_Institution :
Sch. of Electr. Eng. & Telecommun., Univ. of New South Wales, Sydney, NSW, Australia
Abstract :
While the outer-bound of sum degrees of freedom (DoF) of 3-user interference channel is known, the entire DoF region is still unknown in terms of both outer-bound and achievable region. In this paper, we first give the outer-bound of DoF region. Then, we present a linear beamforming scheme based on interference alignment chain whose achievable DoF region is the same as the outer bound, with the consideration of integer DoF only.
Keywords :
MIMO communication; array signal processing; cochannel interference; DoF region; degrees of freedom region; interference alignment chain; linear beamforming scheme; outer-bound region; three-user MIMO interference channels; Array signal processing; Bismuth; Interference channels; MIMO; Receivers; Transmitters;
Conference_Titel :
Global Communications Conference (GLOBECOM), 2013 IEEE
Conference_Location :
Atlanta, GA
DOI :
10.1109/GLOCOM.2013.6831333
