Virtual channel designs for guaranteeing bandwidth in asynchronous network-on-chip

Logically separate channels sharing a physical link, so called virtual channels (VCs), have wide spread uses in multicomputer networks as well as in Network-on-Chip (NoC). This paper presents a number of low overhead VC Implementations, using asynchronous circuit techniques. The designs are highly modular, and can be used to provide access to any shared media. As a demonstration of use, on-chip links providing per connection bandwidth guarantees were implemented.