A Survey on Distributed Explicit Rate Schemes in Multi Input Multi Output Network Systems

The design of distributed explicit rate flow control schemes for the multi input multi output services has received the considerable focus with the ever increasing wireless and the wired data applications. This paper proposes two novel multi points to multi point flow control schemes. The schemes are based on the distributed self-tuning proportional integrative plus derivative controller. The control parameters can be designed to ensure the stability of the control loop in terms of the source rate. In order to regulate the transmission rate the controllers are located at the wireless/wired multi point to multipoint multicast source. We further analyze the theoretical aspects of the proposed algorithm, show how the control mechanism can be used to design a controller to support many-to-many multi-rate multicast transmission based on ER feedback, and verify its agreement with simulations in the case of bottleneck link appearing in a multicast tree. The simulation results can be obtained in terms of the system stability, high link utilizations, fast response, scalability, high throughput and fairness.