TY - GEN
T1 - Sum rate maximizing in a multi-user MIMO system with SWIPT
AU - Gui, Xin
AU - Zhu, Zhengyu
AU - Lee, Inkyu
N1 - Publisher Copyright:
© 2015 IEEE.
PY - 2015/7/1
Y1 - 2015/7/1
N2 - Abstract-This paper studies the simultaneous wireless infor- mation and power transfer (SWIPT) in a multiuser broadcast (BC) multiple-input multiple-output (MIMO) system, in which a base station sends messages to several information decoding (ID) users, and transmits wireless power to multiple energy harvesting (EH) user at the same time. We aim to maximize the sum-rate of the ID users while maintaining a minimum EH constraint for each EH user. Firstly, an optimal rate-energy (R-E) boundary is characterized by using a BC-multiple access channel (MAC) duality derived from dirty paper coding (DPC). Since the complexity of the DPC is quite high due to continuously encoding and decoding at the transceivers, we then propose a sub- optimal algorithm using a weighted minimum mean square error (WMMSE) approach, which has lower complexity and iteratively converges a local optimal point.
AB - Abstract-This paper studies the simultaneous wireless infor- mation and power transfer (SWIPT) in a multiuser broadcast (BC) multiple-input multiple-output (MIMO) system, in which a base station sends messages to several information decoding (ID) users, and transmits wireless power to multiple energy harvesting (EH) user at the same time. We aim to maximize the sum-rate of the ID users while maintaining a minimum EH constraint for each EH user. Firstly, an optimal rate-energy (R-E) boundary is characterized by using a BC-multiple access channel (MAC) duality derived from dirty paper coding (DPC). Since the complexity of the DPC is quite high due to continuously encoding and decoding at the transceivers, we then propose a sub- optimal algorithm using a weighted minimum mean square error (WMMSE) approach, which has lower complexity and iteratively converges a local optimal point.
UR - http://www.scopus.com/inward/record.url?scp=84940399256&partnerID=8YFLogxK
U2 - 10.1109/VTCSpring.2015.7146114
DO - 10.1109/VTCSpring.2015.7146114
M3 - Conference contribution
AN - SCOPUS:84940399256
T3 - IEEE Vehicular Technology Conference
BT - 2015 IEEE 81st Vehicular Technology Conference, VTC Spring 2015 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 81st IEEE Vehicular Technology Conference, VTC Spring 2015
Y2 - 11 May 2015 through 14 May 2015
ER -