Skip to Main content Skip to Navigation
New interface
Conference papers

Energy Efficient Multi-User MISO Communication using Low Resolution Large Intelligent Surfaces

Abstract : We consider a multiuser Multiple-Input Single-Output (MISO) communication system comprising of a multi-antenna base station communicating in the downlink simultaneously with multiple single-antenna mobile users. This communication is assumed to be assisted by a Large Intelligent Surface (LIS) that consists of many nearly passive antenna elements, whose parameters can be tuned according to desired objectives. The latest design advances on these surfaces suggest cheap elements effectively acting as low resolution (even 1-bit resolution) phase shifters, whose joint configuration affects the electromagnetic behavior of the wireless propagation channel. In this paper, we investigate the suitability of LIS for green communications in terms of Energy Efficiency (EE), which is expressed as the number of bits per Joule. In particular, for the considered multiuser MISO system, we design the transmit powers per user and the values for the surface elements that jointly maximize the system's EE performance. Our representative simulation results show that LIS-assisted communication, even with nearly passive 1-bit resolution antenna elements, provides significant EE gains compared to conventional relay-assisted communication.
Document type :
Conference papers
Complete list of metadata

Cited literature [30 references]  Display  Hide  Download
Contributor : Daniel Ioan Connect in order to contact the contributor
Submitted on : Thursday, January 17, 2019 - 1:23:26 PM
Last modification on : Sunday, June 26, 2022 - 2:27:41 AM


Files produced by the author(s)


  • HAL Id : hal-01984864, version 1


Chongwen Huang, George C Alexandropoulos, Alessio Zappone, Merouane Debbah, Chau Yuen. Energy Efficient Multi-User MISO Communication using Low Resolution Large Intelligent Surfaces. IEEE Global Communications Conference (GLOBECOM) 2018, Dec 2018, Abu Dhabi, United Arab Emirates. ⟨hal-01984864⟩



Record views


Files downloads