Paper Info
Title
Achievable degrees of freedom region of MIMO relay networks using Detour Schemes
Abstract
In this paper, we study the degrees of freedom (DoF) of the MIMO relay networks. We start with a general Y channel, where each user has Mi antennas and aims to exchange messages with the other two users via a relay equipped with N antennas. Then, we extend our work to a general 4-user MIMO relay network. Unlike most previous work which focused on the total DoF of the network, our aim here is to characterize the achievable DoF region as well. We develop an outer bound on the DoF region based on the notion of one sided genie. Then, we define a new achievable region using the Signal Space Alignment (SSA) and the Detour Schemes. Our achievable scheme achieves the upper bound for certain conditions relating Mi's and N.
Year
DOI
Venue
2014
10.1109/ICC.2014.6883594
international conference on communications
Keywords
Field
DocType
MIMO communication,relay networks (telecommunication),DoF,SSA,achievable DoF region,degrees of freedom region,detour schemes,general 4-user MIMO relay network,one sided genie,signal space alignment
Topology,Mimo relay,Computer science,Control theory,Upper and lower bounds,Computer network,Communication channel,Relay
Conference
ISSN
Citations 
PageRank 
1550-3607
3
0.41
References 
Authors
8
4
Name
Order
Citations
PageRank
Ahmed A. Zewail1163.08
Mohamed Nafie225342.26
Yahya Mohasseb3639.48
El Gamal, H.41815126.04