Nack-Based Broadcast Mechanism for Isochronous Audio Stream Transmission Using Bluetooth Low Energy

摘要

Bluetooth Low Energy which has been developed and deployed into the real home environment provided high energy efficiency where only low traffic environment was needed. However, the current version of this technology couldn't support audio broadcast stream transmission because this environment requires classified isochronous data channel. For addressing this issue, this paper propose a new broadcast mechanism under the assumption of the next generation technology of Bluetooth Low Energy, using Nack mechanism combined with energy detection mechanism, in order to support seamless broadcast transmission of audio data stream. For further study, this paper designed energy detection for Nack reception without awareness of the number of slave nodes.