학술논문
Degrees of Freedom for Complex MIMO Multiple-Way Relay Channel
Document Type
Article
Text
Text
Author
Source
International Journal of Multimedia and Ubiquitous Engineering, 11/30/2014, Vol. 9, Issue 11, p. 31-38
Subject
Language
English
ISSN
1975-0080
Abstract
The amount of diversity or the number of degrees of freedom (DOF) can be increased by multiple antennas in wireless communication systems. In this paper, we study the DOF of multiple-input multiple-output (MIMO) multiple-way relay channel. There are two groups of source nodes and several one relay node which are equipped with multiple antennas in this kind of channel. Each source node in one group exchanges independent message with the source node in the other group via the relay node. We first show the upper bound on the total DOF for this channel. Then we extend it to the complex MIMO multiple-way relay channel and present the corresponding upped bound.