An energy efficient antenna selection for large scale green MIMO systems
| Autor: | Jin-hyeock Choi, Byung-Chang Kang, Jongho Bang, Byung Moo Lee |
|---|---|
| Rok vydání: | 2013 |
| Předmět: |
Reconfigurable antenna
Engineering business.industry MIMO Astrophysics::Instrumentation and Methods for Astrophysics Antenna efficiency law.invention Base station law Electronic engineering Antenna noise temperature Antenna (radio) business Selection (genetic algorithm) Computer Science::Information Theory Efficient energy use |
| Zdroj: | ISCAS |
| DOI: | 10.1109/iscas.2013.6572005 |
| Popis: | This paper proposes an energy efficient antenna selection for large scale (LS) MIMO in green base station (BS). For the maximum energy efficiency (EE) operation of LS-MIMO, antenna selection is necessary, because the RF chains which are connected with antennas are expensive, and consumes a lot of power. However, the excessive amount of antennas in LS-MIMO hinder the efficient antenna selection. We determine optimum antenna number in various circumstances, and show that with LS-MIMO, simple random antenna selection can provide significant EE gain. Moreover, we also show if the EE optimum number of antenna is larger than a certain threshold, the random antenna selection is already very close to the optimum antenna selection. The proposed technique is verified by both mathematical analysis and numerical simulations. |
| Databáze: | OpenAIRE |
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