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本文从信道利用率的角度对各种用于总线型局部网络的存取协议进行了分析比较,论证了OMNINET网络采用的载波监听多址存取并带有碰撞避免的存取协议(CSMA/CA),是目前效率最高的一种争用信道的方法。同时分析了传输延迟对信道利用率、数据传输速率、传输距离的限制和影响。
This paper analyzes and compares various access protocols for bus-based local networks from the perspective of channel utilization. It proves that CSMA / CA (Collision Avoidance Access Protocol) ), Is currently the most efficient method of contention channel. At the same time, the limitations and influences of transmission delay on channel utilization, data transmission rate and transmission distance are analyzed.