Channel: Defines communication links between nodes.Node1: Group name of the first node (e.g.,LEOfor satellites).Node2: Group name of the second node (e.g.,GSfor ground stations).Min_elevation_angle: Minimum elevation angle for the link in degrees.Threshold: Maximum distance for the link in meters.Data_rate: Data rate of the link in Mbit/s.Packet_loss: Percentage of packet loss for the link.Correlated_losses: Percentage of correlated packet losses (e.g., burst losses).