  Active Noise Control (ANC) is a widely adopted technology for reducing
environmental noise across various scenarios. This paper focuses on enhancing
noise reduction performance, particularly through the refinement of signal
quality fed into ANC systems. We discuss the main wireless technique integrated
into the ANC system, equipped with some innovative algorithms, in diverse
environments. Instead of using microphone arrays, which increase the
computation complexity of the ANC system, to isolate multiple noise sources to
improve noise reduction performance, the application of the wireless technique
avoids extra computation demand. Wireless transmissions of reference, error,
and control signals are also applied to improve the convergence performance of
the ANC system. Furthermore, this paper lists some wireless ANC applications,
such as earbuds, headphones, windows, and headrests, underscoring their
adaptability and efficiency in various settings.
