The tips in testing wireless communication system performance

Feb 10,2025
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Signal coverage

The signal coverage determines the size of the area in which the system can communicate normally. The coverage test is usually completed by conducting communication tests in different locations and recording signal strength and voice clarity. Insufficient signal coverage will lead to communication blind spots and affect the user experience.

 

Signal-to-noise ratio

The signal-to-noise ratio is directly related to voice quality. A higher signal-to-noise ratio means clearer voice transmission. When testing, the system's signal-to-noise ratio can be tested in different environments to evaluate its performance in actual use. A low signal-to-noise ratio may cause voice distortion or unclearness, which is particularly evident in noisy environments.

 

Spectral efficiency

Spectral efficiency refers to the amount of information that can be transmitted per unit of spectrum resources. For environments with limited spectrum resources, improving spectrum efficiency can significantly enhance the system's communication capabilities. In testing, the system’s performance under different channel bandwidths can be evaluated to determine whether its spectrum efficiency meets expectations.

 

Multipath effect

Multipath effect refers to the phase difference and amplitude difference caused by the signal reaching the receiving end through different paths during the propagation process, which leads to signal interference. The method of detecting multipath effect is usually to determine the degree of influence of multipath effect by measuring the signal strength fluctuation at the receiving end. Strong multipath effect may lead to reduced communication quality.


Transmitting power and receiving sensitivity

The transmitting power determines the maximum distance that the signal can propagate, while the receiving sensitivity determines how weak the signal can be received by the device. During the detection, it should be ensured that the transmitting power is large enough and the receiving sensitivity is high enough to ensure the communication coverage and quality of the system.

 

Anti-interference ability

In actual applications, the wireless communication system may be interfered by other wireless devices. These interferences may come from signals in adjacent frequency bands or from other devices in the same frequency band. By testing the performance of the system in an interference environment, its anti-interference ability can be evaluated. Strong anti-interference ability can ensure that the system can still work stably in a complex environment.

 

Frequency stability

Frequency drift will cause unstable system communication or even communication interruption. By running the test for a long time and observing the frequency changes of the system, its frequency stability can be evaluated.

 

Hardware reliability

The hardware part of the system includes core components such as antennas, transmitters, and receivers. The working status of these components directly affects the overall performance of the system. By conducting detailed tests on each part of the hardware, it can be ensured that the hardware of the system can work stably under various conditions.

 

System security

The security of the wireless communication system includes not only the security of data transmission, but also the anti-tampering ability of the system itself. By testing the performance of the system under malicious attacks, its security level can be evaluated. When performing wireless communication system performance testing, the above key indicators are indispensable. Each indicator affects the overall performance of the system from different angles. In actual testing, by comprehensively evaluating these indicators, it can be ensured that the system can work stably and reliably in various environments.


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