空间信息网多业务传输优先级算法研究  

Multi Services Transmission Priority Algorithm for Space Information Network

作　　者：孙博[1] 李睿德 孙文静[1] 

机构地区：[1]北京理工大学通信技术研究所,北京100081

出　　处：《载人航天》2017年第2期279-284,共6页Manned Spaceflight

基　　金：载人航天预先研究项目(060501)

摘　　要：空间信息网中不同业务对通信速率、存储容量、传输时延及误码率要求差异较大而难以统一,针对如何对不同业务进行优先级确定从而保证QoS需求的问题,提出了一种基于层次分析法的改进TOPSIS算法。在充分考虑空间节点参与业务传输能力的情况下,对不同业务的优先级进行计算并排队,使空间信息网络节点与业务需求达到动态匹配,实现满足不同业务的QoS需求的目标。It is difficult to unify the requirements on the communication rate, the storage capacity, the transmission delay and the bit error rate for the different services in space information network. Consequently, an improved TOPSIS algorithm based on analytic hierarchy process was proposed so as to guarantee the quality of service （ QoS ） requirements by determining the priorities of various services. The algorithm proposed could calculate and arrange the priorities of different services with adequate consideration of the node＇s capability to participate in the service transmission. Thus, the space information network node could dynamically match the service requirements and achieve the goal of satisfying diverse QoS requirements.

关 键 词：空间信息网 服务质量 TOPSIS算法 

分 类 号：TN915.02[电子电信—通信与信息系统] N945.25[电子电信—信息与通信工程]