Load-Aware Energy Efficient Adaptive Large Scale Antenna System
| Autor: | Emad Alsusa, Daniel K. C. So, Arafat Al-Dweik, Wahyu Pramudito, Thomas L. Marzetta, Khairi Ashour Hamdi |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
massive mimo
General Computer Science Wireless network Computer science Transmitter discontinuous transmission General Engineering QoS Precoding Antenna array Electronic engineering adaptive precoding energy efficiency suburban and rural scenarios General Materials Science lcsh:Electrical engineering. Electronics. Nuclear engineering Discontinuous transmission Active antenna Antenna (radio) Massive MIMO lcsh:TK1-9971 energy efficiency Efficient energy use |
| Zdroj: | IEEE Access, Vol 8, Pp 82592-82606 (2020) Pramudito, W, Alsusa, E, Al-Dweik, A, Hamdi, K, So, D K C & Marzetta, T 2020, ' Load-aware Energy Efficient Adaptive Large Scale Antenna System ', IEEE Access, pp. 1 . https://doi.org/10.1109/ACCESS.2020.2991381 |
| ISSN: | 2169-3536 |
| DOI: | 10.1109/access.2020.2991381 |
| Popis: | This paper proposes an adaptive large scale antenna system (ALSAS) for enhancing energy efficiency in low density wireless network scenarios. The proposed ALSAS comprises of two stages, a novel adaptive discontinuous transmission (ADTx) stage and an antenna array optimization (AAO) one. The basic idea is to utilize prior knowledge of the users’ quality of service (QoS) requirements as well as precoding selection in the ADTx stage to maximize the transmitter hibernation periods subject to a certain complexity constraint. In the AAO stage, further power saving is achieved by reducing the number of active antenna elements subject to a certain QoS requirement. It is shown that, relative to conventional large scale antenna system (LSAS), the proposed ALSAS system achieves significant energy efficiency improvements under various scenarios. The results show that the proposed technique can provide energy efficiency improvement between 125% and 1124% in the suburban scenario, and between 196% and 952% in the rural scenario. It is also demonstrated that for rural environments with relatively small short inter-site-distance (ISD) values,ALSAS can provide up to 500% power saving for the fixed bit rate requirement case. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|