摘要
卫星通信系统的多址接入协议包括:PRMA-HS、PRR-CFDAMA及BTDAMA。PRMA-HS协议是TDMA和S-ALOHA协议的结合,通过语音检测激活技术来分辨话音期和沉默期,其每帧的时隙分为被预约和可用时隙。PRR-CFDAMA协议在CFDAMA基础上增强预分配策略,把从终端来的包分为数据包和控制包。BTDAMA协议采用ON/OFF数据传输,适合于处理有一系列的突发和间隙的传输。
The multiple access protocols for satellite communication system include： PRMA-HS, PRR-CFDAMA and BTDAMA. PRMA-HS Protocol is the combinations of TDMA and S-ALOHA Protocols, the voice activation technology is applied to distinguish the voice period and the silence period, and the slots of every frame are divided to reserved slots and useable slots. PRR-CFDAMA enhances the pre-assignment strategy in CFDAMA by dividing the packets coming from the terminals into two kinds： data packets and control packets. BTDAMA protocol adopts ON/OFF transmit pattern, and it is suited to handling traffic which can be identified by a series of bursts and inter-burst gaps.
出处
《兵工自动化》
2006年第6期57-58,65,共3页
Ordnance Industry Automation
