Fairness and congestion control in LAN/WAN protocol relays

This paper addresses the problem of congestion control and fairness in relay systems for Connection Mode LAN/WAN interworking. To ensure congestion collapse avoidance and fairness against QoS (Quality of Service) parameters, a channel service algorithm and a flow control algorithm are proposed and evaluated by simulations. Results show that, in a situation of overload and for different traffic patterns with different QoS requirements, the relay's channel service and flow control algorithms can guarantee justice in relay resource utilization and the expected QoS among the active channels.