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IEEE Global Telecommunications Conference
Masouros, Christos; Zheng, Gan
2015In Power Efficient Downlink Beamforming Optimization by Exploiting Interference
Peer reviewed
 

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Abstract :
[en] We propose a new beamforming scheme for the multi-user multiple-input-single-output (MISO) downlink channel. While conventional beamforming aims at the minimization of the transmit power subject to suppressing interference to guarantee quality of service (QoS) constraints, here we exploit, rather than suppress, the constructive part of interference. By exploiting the power of constructively interfering symbols, the proposed scheme achieves the required QoS at lower transmit power. In addition, we derive an equivalent virtual multicast formulation for the proposed optimization to facilitate the design of a more efficient solver. Our simulation and analysis show significant power savings for small scale MISO downlink channels with the proposed optimization compared to conventional beamforming optimization.
Disciplines :
Computer science
Author, co-author :
Masouros, Christos
Zheng, Gan ;  University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT)
External co-authors :
yes
Language :
English
Title :
IEEE Global Telecommunications Conference
Publication date :
06 December 2015
Event name :
IEEE Global Telecommunications Conference (GLOBECOM)
Event place :
San Diego, United States
Event date :
from 6-12-2015 to 10-12-2015
Audience :
International
Main work title :
Power Efficient Downlink Beamforming Optimization by Exploiting Interference
Peer reviewed :
Peer reviewed
Available on ORBilu :
since 11 February 2016

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