A Comparative Study of Error Vector Magnitude Measurement in a Reverberation Chamber

Fang, Feng; Qi, Wenjuan; Xia, Wenjun; Li, Chong; Xing, Lei; Xu, Qian

doi:10.1109/lawp.2022.3201027

Antennas Wirel. Propag. Lett.

2022

DOI: 10.1109/lawp.2022.3201027

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A Comparative Study of Error Vector Magnitude Measurement in a Reverberation Chamber

Feng Fang

Wenjuan Qi

Wenjun Xia

et al.

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2024

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Over-the-air testing of LTE-A PHY layer in reverberation chamber

Lodro,

Korunur Engiz,

Thomas

2024

JAE

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Reliable, repeatable, and flexible testing is crucial for assessing system performance and ensuring the quality of communication. In reverberation chambers (RC), real-life propagation environments can be emulated by loading absorbers, facilitating controlled testing of the system. This work presents over-the-air (OTA) testing of the LTE-A PHY layer in the RC. We assessed the performance of the LTE-A link using key performance indicators (KPIs) such as error vector magnitude (EVM), bit error rate (BER), and signal-to-noise ratio (SNR) for varying transmitter (Tx) and receiver (Rx) gains. Additionally, we have compared the results both in an empty RC and when the RC was loaded with RF absorbers. We used software-defined radio (SDR) for OTA transmission of LTE-A frames. The measurement results indicate that loading the RC with RF absorbers improves EVM, BER, and SNR. We also quantified the performance of the LTE-A link by changing the position of RF absorbers. Results showed that loading absorbers yielded up to 72.8% improvement in EVM, and placing absorbers closer to Rx helped reduce the amount of multipath, resulting in better transmission performance.

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Over-the-air testing of LTE-A PHY layer in reverberation chamber

Lodro,

Korunur Engiz,

Thomas

2024

JAE

View full text Add to dashboard Cite

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A Comparative Study of Error Vector Magnitude Measurement in a Reverberation Chamber

Cited by 1 publication

References 12 publications

Over-the-air testing of LTE-A PHY layer in reverberation chamber

Over-the-air testing of LTE-A PHY layer in reverberation chamber

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