DSpace
 
  Repositório Institucional da Universidade de Aveiro > Departamento de Electrónica, Telecomunicações e Informática > DETI - Comunicações >
 Performance evaluation of distributed precoding schemes for multicell OFDM systems
Please use this identifier to cite or link to this item http://hdl.handle.net/10773/5755

title: Performance evaluation of distributed precoding schemes for multicell OFDM systems
authors: Holakouei, Reza
Silva, Adão
Gameiro, Atílio
issue date: 2011
publisher: Institute of Electrical and Electronics Engineers (IEEE)
abstract: In this paper we propose and evaluate distributed multiuser linear precoding techniques for the downlink of multicell MIMO OFDM systems. The precoder is designed in two phases: first the intercell interference is removed by applying a set of precoding vectors computed in a distributed manner at each BS; then the system is further optimized through power allocation. Three centralized power allocation algorithms with per-BS power constraint and different complexity tradeoffs are proposed: one optimal to minimize the average BER and two suboptimal. The performances of the proposed schemes are compared to the centralized multicell based approaches recently proposed, and evaluated considering typical pedestrian scenarios. Numerical results show that the proposed suboptimal schemes achieve a performance very close to the optimal. Also, it is shown that for the same degrees of freedom the performance is closed to the one of centralized precoding schemes but with much lower feedback load over the backhaul network. © 2011 IEEE.
URI: http://hdl.handle.net/10773/5755
ISBN: 978-1-4244-8327-3
ISSN: 1550-2252
publisher version/DOI: http://dx.doi.org/10.1109/VETECF.2011.6093098
source: VTC Fall: IEEE Vehicular Technology Conference
appears in collectionsDETI - Comunicações

files in this item

file description sizeformat
vtc_reza_2011.pdf257.93 kBAdobe PDFview/open
Restrict Access. You can Request a copy!
statistics

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

 

Valid XHTML 1.0! RCAAP OpenAIRE DeGóis
ria-repositorio@ua.pt - Copyright ©   Universidade de Aveiro - RIA Statistics - Powered by MIT's DSpace software, Version 1.6.2