How to organize streaming audio streaming from android to android in several subnets?

Question

Android

Hello, please advise!
Given: there are 10 subnets of 100 devices, 1 server, no Internet - only wai-wai.
Necessary: ​​to organize high-quality delivery of the sound received from the server with minimal delay.
I thought about peer-to-peer, but it doesn’t work, because on every knee there is a waste of time. Now I'm considering the option in each subnet to make one device a seed, and all the rest as peers from it. Although in essence this is the same p2p, the only question is whether it is possible to ask somehow in the p2p network what to do every 25th seed, and not everyone in the network. Logically, it seems to be true, but how to do it technically? Send it, please!
Thanks to all!