Open AccessNon‐cooperative interference alignment for multicell multiuser MIMO uplink channels
Author(s) -
Pham Khanh,
Lee Kyungchun
Publication year - 2017
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.2016.1032
Subject(s) - telecommunications link , computer science , overhead (engineering) , interference (communication) , mimo , channel state information , interference alignment , cellular network , channel (broadcasting) , degrees of freedom (physics and chemistry) , signalling , curse of dimensionality , computer network , telecommunications , wireless , mathematics , physics , artificial intelligence , mathematical economics , quantum mechanics , operating system
Linear interference alignment (IA) is considered a promising interference management technique for future cellular networks. However, its application to practical cellular networks still faces many challenges, two of which are the overhead of sharing global channel state information (CSI) and the cost of signalling dimensionality. These two challenges are resolved in this study via a new linear IA scheme that not only prevents global CSI sharing but also keeps the number of signalling dimensions manageable. While making linear IA more applicable, the proposed scheme provides comparable degrees of freedom to the existing IA schemes in symmetric multicell multiuser multiple‐input multiple‐output (MIMO) uplink channels.