Open AccessExact pre‐scheduling SINR analysis for per‐user unitary rate control systems
Author(s) -
Lv Lei,
Zhang ZhongPei
Publication year - 2013
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
ISSN - 1350-911X
DOI - 10.1049/el.2013.0132
Subject(s) - scheduling (production processes) , unitary state , computer science , control theory (sociology) , mathematical optimization , mathematics , control (management) , artificial intelligence , political science , law
The exact probability density function (PDF) of the pre‐scheduling signal‐to‐interference‐plus‐noise ratio (SINR) for per‐user unitary rate control (PU2RC) systems is derived. A main contribution is proposing a novel dimension‐reducing‐type function to resolve the key problem, i.e. within a multi‐dimensional complex space, to obtain the PDF of a unit isotropic vector's maximum projection on vectors of an orthonormal basis. Even if PU2RC systems are only considered, the proposed function is quite useful for the analysis of other orthogonal beams‐based MIMO systems as well. Monte Carlo simulations validate the analysis results.