Imperial College London
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ProfessorBrunoClerckx

Faculty of Engineering, Department of Electrical and Electronic Engineering

Professor of Wireless Communications and Signal Processing
 
 
 
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Contact

 

+44 (0)20 7594 6234b.clerckx Website

 
 
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Location

 

816Electrical EngineeringSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Hao:2017:10.1109/TIT.2017.2735422,
author = {Hao, C and Rassoul, B and Clerckx, B},
doi = {10.1109/TIT.2017.2735422},
journal = {IEEE Transactions on Information Theory},
pages = {6587--6606},
title = {Achievable DoF regions of MIMO networks with imperfect CSIT},
url = {http://dx.doi.org/10.1109/TIT.2017.2735422},
volume = {63},
year = {2017}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - We focus on a two-receiver Multiple-Input-Multiple-Output   (MIMO)   Broadcast   Channel   (BC)   and   InterferenceChannel  (IC)  with  an  arbitrary  number  of  antennas  at  eachnode. We assume an imperfect knowledge of local Channel StateInformation  at  the  Transmitters,  whose  error  decays  with  theSignal-to-Noise-Ratio.  With  such  configuration,  we  characterizethe achievable Degrees-of-Freedom (DoF) regions in both BC andIC,  by  proposing  a  Rate-Splitting  (RS)  approach,  which  divideseach receiver’s message into a common part and a private part.Compared to the RS scheme designed for the symmetric MIMOcase,  the  novelties  of  the  proposed  block  lie  in  1)  deliveringadditional non-ZF-precoded private symbols to the receiver withthe greater number of antennas, and 2) a Space-Time implemen-tation. These features provide more flexibilities in balancing thecommon-message-decodabilities  at  the  two  receivers,  and  fullyexploit  asymmetric  antenna  arrays.  Besides,  in  IC,  we  modifythe  power  allocation  designed  for  the  asymmetric  BC  based  onthe signal space where the two transmitted signals interfere witheach  other.  We  also  derive  an  outer-bound  for  the  DoF  regionsand show that the proposed achievable DoF regions are optimalunder  some  antenna  configurations  and  CSIT  qualities.
AU  - Hao,C
AU  - Rassoul,B
AU  - Clerckx,B
DO  - 10.1109/TIT.2017.2735422
EP  - 6606
PY  - 2017///
SN  - 1557-9654
SP  - 6587
TI  - Achievable DoF regions of MIMO networks with imperfect CSIT
T2  - IEEE Transactions on Information Theory
UR  - http://dx.doi.org/10.1109/TIT.2017.2735422
UR  - http://hdl.handle.net/10044/1/48653
VL  - 63
ER  -
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