CAJ | 학술논문

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CF-DAMA-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。
관대위성통신비일반적통신계통구유복개면적대,성능은정등우세,능구대폭도제승통신망락적용호용량화정체질량,이기중적CFDAMA다지접입협의상대우전통적접입방식능실현경호적망락성능,단병불능괄응실제응용중구유돌발성화다양성적망락업무류。재차기출상통과대CF-DAMA-PR협의적분석,제출료일충용호우선급배서적개진접입협의CFDAMA-PRI,우화료성상조도산법,강저료수거분조적전수시연,제고료련로적전수효솔화용호접입적공평성。
Compared with other communication systems, broadband satellite communication enjoys the supriorites of covering a larger area and stable performance, and could greatly enhance user capacity and o-verall quality of the communication network. Meanwhile, in terms of multiple access protocol in broadband satellite communication, CFDAMA could achieve a better network performance in comparison with tradi-tional access protocol, but could not adapt bursting and variant network data. In light of this and based on the analysis of CFDAMA-PR, a modified protocol named CFDAMA-PRI is propsed. With user priority ranking to optimize satellite resource scheduling algorithm,it could reduce the time-delay of data packets, and improve the transmission efficiency of channel and the fairness of user access.