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以具有复杂包业务特点的空地通信系统为对象,针对传统包信道复用算法具有高处理时延、高丢包率和低系统吞吐量等缺点,设计了一种新的包信道复用算法,可根据包到达率、复合数据包域长度和允许时延来动态选取包信道复用时间.给出新包信道复用算法的时间阈值参考,并对算法进行仿真.结果表明,新算法在保证高包信道复用效率的前提下,可以有效降低包信道复用时延和丢包率,增加有效数据的传输速率,提高系统吞吐量.
Aiming at the disadvantages of traditional packet channel multiplexing algorithm, such as high processing delay, high packet loss rate and low system throughput, a new packet channel multiplexing algorithm is designed for the air-ground communication system with complex packet service characteristics. According to the packet arrival rate, the length of the composite packet field and the allowed delay, the packet channel multiplexing time can be dynamically selected.The time threshold reference of the new packet channel multiplexing algorithm is given and the algorithm is simulated.The results show that the new algorithm guarantees Under the precondition of high packet multiplexing efficiency, it can effectively reduce packet channel multiplexing delay and packet loss rate, increase effective data transmission rate and improve system throughput.