Paper Title:
Analysis of SINR for Unitary and Non-Unitary Precoded MIMO Systems
  Abstract

Pre-coding type can be grouped into two approaches, unitary or non-unitary for 3GPP Long Term Evolution(LTE). Output SINR of unitary Pre-coding for MU-MIMO is investigated in this paper. A more simple method of calculation for SINR is presented, which Leads to the computational complexity down to 18% compared with original method, while calculating MIMO Pre-coding system with 4 matrices (i.e. 8 vectors). In addition, we also analyzed the loss of SINR when using unitary or non-unitary Pre-coding. Corresponding simulations show that output SINR of non-unitary pre-coding system is inferior to the unitary pre-coding case and such losses can been described using statistical linear approximation.

  Info
Periodical
Key Engineering Materials (Volumes 460-461)
Edited by
Yanwen Wu
Pages
414-419
DOI
10.4028/www.scientific.net/KEM.460-461.414
Citation
X. Lu, X. Xu, J. H. Wang, "Analysis of SINR for Unitary and Non-Unitary Precoded MIMO Systems", Key Engineering Materials, Vols. 460-461, pp. 414-419, 2011
Online since
January 2011
Keywords
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