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宽带卫星通信比一般的通信系统具有覆盖面积大,性能稳定等优势,能够大幅度提升通信网络的用户容量和整体质量,而其中的CFDAMA多址接入协议相对于传统的接入方式能实现更好的网络性能,但并不能适应实际应用中具有突发性和多样性的网络业务流。在此基础上通过对CFDAMA-PR协议的分析,提出了一种用户优先级排序的改进接入协议CFDAMA-PRI,优化了星上调度算法,降低了数据分组的传输时延,提高了链路的传输效率和用户接入的公平性。
Broadband satellite communication has the advantages of large coverage area, stable performance and other advantages than general communication system, which can greatly improve the user capacity and overall quality of the communication network, and the CFDAMA multiple access protocol can achieve more advantages than the traditional access methods Good network performance, but it can not adapt to the actual application of the sudden and diverse network traffic. Based on the analysis of CFDAMA-PR protocol, this paper proposes an improved user access priority protocol CFDAMA-PRI, which optimizes the algorithm of on-satellite scheduling, reduces the transmission delay of data packets and improves the link The transmission efficiency and user access fairness.