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传统的通信网模型被称为信道和设备的模型,主要体现设备和信道间的关系。其缺点是,在描述一次具体的通信过程时,往往对发送端和接收端没有明确指示。文中在考察了传统通信网模型后,考虑发送端和接收端之间的关系,在原有通信网模型的基础上,引入信源点、信宿点和带方向箭头的边的新通信网模型。在新通信网模型中,明确指出发送端与接收端的关系,建立起“从信源到信宿的通信网模型”。
Traditional communication network model is called channel and device model, mainly reflects the relationship between equipment and channel. The disadvantage is that there is often no clear indication of the sender and receiver when describing a particular communication process. After examining the traditional communication network model, the paper considers the relationship between the sender and the receiver, and based on the original communication network model, introduces a new communication network model with source points, sink points and edges with directional arrows. In the new communication network model, the relationship between sender and receiver is clearly indicated and a “communication network model from source to sink” is established.