Imperial College London
Portrait Picture

ProfessorBrunoClerckx

Faculty of Engineering, Department of Electrical and Electronic Engineering

Professor of Wireless Communications and Signal Processing
 
 
 
//

Contact

 

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

 
 
//

Location

 

816Electrical EngineeringSouth Kensington Campus

//

Summary

 

Publications

Citation

BibTex format

@article{Piovano:2019:10.1109/tit.2019.2914204,
author = {Piovano, E and Joudeh, H and Clerckx, B},
doi = {10.1109/tit.2019.2914204},
journal = {IEEE Transactions on Information Theory},
pages = {5799--5815},
title = {Generalized degrees of freedom of the symmetric cache-aided MISO broadcast channel with partial CSIT},
url = {http://dx.doi.org/10.1109/tit.2019.2914204},
volume = {65},
year = {2019}
}
Download

RIS format (EndNote, RefMan)

TY  - JOUR
AB  - We consider the cache-aided MISO broadcast channel (BC) in which a multi-antenna transmitter serves K singleantenna receivers, each equipped with a cache memory. The transmitter has access to partial knowledge of the channel state information. For a symmetric setting, in terms of channel strength levels, partial channel knowledge levels and cache sizes, we characterize the generalized degrees of freedom (GDoF) up to a constant multiplicative factor. The achievability scheme exploits the interplay between spatial multiplexing gains and codedmulticasting gain. On the other hand, a cut-set-based argument in conjunction with a GDoF outer bound for a parallel MISO BC under channel uncertainty are used for the converse. We further show that the characterized order-optimal GDoF is also attained in a decentralized setting, where no coordination is required for content placement in the caches.
AU  - Piovano,E
AU  - Joudeh,H
AU  - Clerckx,B
DO  - 10.1109/tit.2019.2914204
EP  - 5815
PY  - 2019///
SN  - 0018-9448
SP  - 5799
TI  - Generalized degrees of freedom of the symmetric cache-aided MISO broadcast channel with partial CSIT
T2  - IEEE Transactions on Information Theory
UR  - http://dx.doi.org/10.1109/tit.2019.2914204
UR  - http://hdl.handle.net/10044/1/70314
VL  - 65
ER  -
Download