计算机工程
計算機工程
계산궤공정
COMPUTER ENGINEERING
2010年
1期
7-8,11
,共3页
卫星通信%媒体接入控制%带宽按需分配%CFDAMA协议
衛星通信%媒體接入控製%帶寬按需分配%CFDAMA協議
위성통신%매체접입공제%대관안수분배%CFDAMA협의
satellite communication%Medinm Access Control(MAC)%bandwidth demand assignment%CFDAMA protocol
结合固定时隙分配协议、按需请求分配协议、随机接入分配协议的优点,提出一种适应性的混合卫星通信网络MAC协议CFDR-MAC.分配机制的边界点可以动态调节,从而实现MAC协议的适应性控制.仿真结果表明,CFDR-MAC具有较好的吞吐率和时延性能,能满足卫星通信网络的多种应用流量场景要求.
結閤固定時隙分配協議、按需請求分配協議、隨機接入分配協議的優點,提齣一種適應性的混閤衛星通信網絡MAC協議CFDR-MAC.分配機製的邊界點可以動態調節,從而實現MAC協議的適應性控製.倣真結果錶明,CFDR-MAC具有較好的吞吐率和時延性能,能滿足衛星通信網絡的多種應用流量場景要求.
결합고정시극분배협의、안수청구분배협의、수궤접입분배협의적우점,제출일충괄응성적혼합위성통신망락MAC협의CFDR-MAC.분배궤제적변계점가이동태조절,종이실현MAC협의적괄응성공제.방진결과표명,CFDR-MAC구유교호적탄토솔화시연성능,능만족위성통신망락적다충응용류량장경요구.
By combining the advantages of Fixed Assignment(FA) protocol, Demand Assignment(DA) protocol and Random Aocess(R.A) protocol, this paper proposes an adaptive hybrid Medium Access Control(MAC) protocol for satellite communication networks, which is named CFDR-MAC. The proportion parameter of assignment boundary can be adjusted flexibly and adaptively, so that MAC protocol can be controlled adaptively. Simulation results show that CFDR-MAC protocol has better throughput, less delay, and it can adapt to various satellite communication networks.
