VSAT数据通信网的多址协议  

Multiple Access Protocol for VSAT Data Communication Network

作　　者：庞宗山[1] 

机构地区：[1]军械工程学院二系无人机教研室,石家庄050003

出　　处：《科学技术与工程》2007年第16期4167-4169,4172,共4页Science Technology and Engineering

摘　　要：多址协议是VSAT卫星通信网的关键技术之一。在VSAT数据通信网中,为了在传输数字综合业务时,减小传输时延,提高对转发器的利用率,合理地分配带宽而采用各种多址协议。多址协议根据各VSAT小站接入卫星信道的方式,可分为固定分配、随机争用和预约可控三类;根据卫星信道是否划分时隙,可分为"时隙"和"非时隙"两类。The multiple access protocol is one of the key technologies of VSAT satellite communication network. All kinds of multiple access protocol are adopted （in VSAT data communication network）when transferring digital integrative task, in order to reduce transferring time lag, enhance the utilization efficiency, distribute the bandwidth reasonably. According to the mode of VSAT small station access to the channel, the multiple access protocol can be divided into fixed distribution, stochastic contest and reserved controllable, According to whether the satellite channel is divided into slots, the multiple access can be divided into slotted and not slotted.

关 键 词：多址协议 VSAT ALOHA 卫星通信 

分 类 号：TN927.23[电子电信—通信与信息系统]