Modification to DFT -Based Codevectors for Beamforming over the SCM Using Circular Arrays
| Autor: | Changhyeon Kim, Ju Wook Jang, Wonjin Sung, Huiwon Kim, Junyeub Sub, Junsik Shin |
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| Rok vydání: | 2018 |
| Předmět: |
Beamforming
Computer science MIMO Codebook 020206 networking & telecommunications 02 engineering and technology Spectral efficiency Base station User equipment Transmission (telecommunications) 0202 electrical engineering electronic engineering information engineering 020201 artificial intelligence & image processing Antenna (radio) Algorithm |
| Zdroj: | 2018 International Conference on Advances in Computing and Communication Engineering (ICACCE). |
| Popis: | For enhancement of the received signal quality and spectral efficiency, transmission techniques using multiple antennas are becoming more important. To achieve the expected performance of multi-antenna transmission, efficient beamforming by applying appropriately designed codebooks is desired. Although eNBs (or base stations) are evolving to include antenna arrays of various sizes and shapes, most codebooks proposed earlier are targeted for uniform linear arrays (ULAs). We present a codebook construction scheme for circularly shaped arrays, using parameters which are adjusted to flexibly set the initial phase and step size values based on the location of user equipment (UE). The amount of gain achieved by the proposed codebook over the conventional ones is quantified using the spatial channel model (SCM) adopted by 3GPP. |
| Databáze: | OpenAIRE |
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