| 星上抽样侦听统计自适应多址接入协议 |
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| 引用本文： | 王凯东,田斌,易克初.星上抽样侦听统计自适应多址接入协议[J].系统工程与电子技术,2005,27(4):635-640. |
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| 作者姓名： | 王凯东 田斌 易克初 |
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| 作者单位： | 西安电子科技大学ISN国家重点实验室,陕西,西安,710071 |
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| 基金项目： | 国家自然科学基金 (60 172 0 2 9)，空间微波技术国防科技重点实验室基金 (5 14 73 0 2 0 1)资助课题 |
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| 摘 要： | 提出一种新颖的多址接入协议—星上抽样侦听统计自适应多址接入协议。该协议考虑到卫星链路长时延特点,在星上对上行链路信道进行抽样侦听,统计每一固定的时间片中上行信道忙/闲比例,计算出各站最合理的分组发送概率,并通过下行链路广播到各站,以实现发送概率的自适应控制。理论分析和仿真结果表明:该协议可将上行链路的吞吐率提高并稳定到最大值区间附近,使端到端传输时延明显减小,且实现简单
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| 关 键 词： | 卫星网络 星上处理 星上交换 星上抽样侦听统计自适应多址 |
| 文章编号： | 1001-506X(2005)04-0635-06 |
| 修稿时间： | 2004年3月14日 |
On-board sampling-sensing statistically adaptive multiple access protocol |
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| WANG Kai-dong,TIAN Bin,YI Ke-chu.On-board sampling-sensing statistically adaptive multiple access protocol[J].System Engineering and Electronics,2005,27(4):635-640. |
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| Authors: | WANG Kai-dong TIAN Bin YI Ke-chu |
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| Abstract: | A novel on-board sampling-sensing statistically adaptive multiple access protocol that is particularly suitable for reservation channel of satellite networks is developed. The protocol is very simple, which is aimed at contention protocol and long delay characteristics and uses statistical method to adaptively adjust sending probability. The simulation result shows that the protocol can not only enhance satellite uplink's throughput and make it stabilized to the maximum region, but also decrease the end-to-end delay. This protocol is very suitable for uplink multi-send single-receive and downllink single-send multi-receive satellite or ground network systems. |
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| Keywords: | satellite networks on-board processing on-board switching on-board SSSAMA |
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