TY - GEN
T1 - Guiding blind transmitters for K-user MISO interference relay channels with Imperfect channel knowledge
AU - Shin, Wonjae
AU - Lee, Namyoon
AU - Lee, Jungwoo
AU - Poor, H. Vincent
N1 - Funding Information:
The work of W. Shin and J. Lee was supported in part by the Basic Science Research Program (NRF-2013R1A1A2008956 and NRF- 2015R1A2A1A15052493) through the National Research Foundation of Korea funded by MOE and MSIP, the Technology Innovation Program (10051928) funded by MOTIE, the Bio-Mimetic Robot Research Center funded by the Defense Acquisition Program Administration (UD130070ID), INMAC, and BK21-plus. The work of N. Lee was supported by the ICT RandD program (IITP-2016-B0717-16-0002) of MSIP/IITP. The work of H. V. Poor was supported in part by the U. S. National Science Foundation under Grants CCF-1420575 and ECCS-1343210
Publisher Copyright:
© 2016 IEEE.
Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.
PY - 2016/8/10
Y1 - 2016/8/10
N2 - This paper proposes a novel multi-antenna relay-aided interference management technique that can use imperfect channel knowledge for interference relay channels. Using the proposed method, it is shown that KM over K+M-1 degrees of freedom (DoF) are achievable in a K-user multiple-input-single-output interference relay channel when the relay has M antennas with a certain type of limited channel knowledge. By leveraging this result, it is demonstrated that the interference-free DoF of K are asymptotically achieved as M approaches infinity. One major implication of these results is that even under this limited channel knowledge, the use of massive antennas at the relay is sufficient to recover the optimal DoF for relay-aided interference networks with perfect channel knowledge.
AB - This paper proposes a novel multi-antenna relay-aided interference management technique that can use imperfect channel knowledge for interference relay channels. Using the proposed method, it is shown that KM over K+M-1 degrees of freedom (DoF) are achievable in a K-user multiple-input-single-output interference relay channel when the relay has M antennas with a certain type of limited channel knowledge. By leveraging this result, it is demonstrated that the interference-free DoF of K are asymptotically achieved as M approaches infinity. One major implication of these results is that even under this limited channel knowledge, the use of massive antennas at the relay is sufficient to recover the optimal DoF for relay-aided interference networks with perfect channel knowledge.
UR - http://www.scopus.com/inward/record.url?scp=84985920607&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84985920607&partnerID=8YFLogxK
U2 - 10.1109/ISIT.2016.7541358
DO - 10.1109/ISIT.2016.7541358
M3 - Conference contribution
AN - SCOPUS:84985920607
T3 - IEEE International Symposium on Information Theory - Proceedings
SP - 545
EP - 549
BT - Proceedings - ISIT 2016; 2016 IEEE International Symposium on Information Theory
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2016 IEEE International Symposium on Information Theory, ISIT 2016
Y2 - 10 July 2016 through 15 July 2016
ER -