Based on the experiences accumulated during the development of a family of 2.4 GHz wireless audio streaming ICs, the paper presents challenges in providing high-quality, uninterrupted audio streaming in the 2.4 GHz ISM band. It discusses the impairments to expect in a dense indoor radio environment, gives an overview of the main interfering radio standards in the 2.4 GHz band that any such system must coexist with, and outlines methods and techniques that are essential in order to overcome these difficulties. To exemplify, some of the critical design choices that were made for the first device in the family are presented along with thoughts on possible future improvements.
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