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首页> 外文期刊>International Journal of Satellite Communications and Networks >A predictive demand assignment multiple access protocol for Internet access over broadband satellite networks
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A predictive demand assignment multiple access protocol for Internet access over broadband satellite networks

机译：用于宽带卫星网络上的Internet的预测性需求分配多路访问协议

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摘要

Medium access control (MAC) protocol is responsible for wireless resource management, which is crucial to satellite communication. To enhance the performance of broadband satellite networks, the application characteristics should be considered in the design of the MAC protocol. With the rapid expansion of Internet applications and the attractiveness of high speed Internet access via broadband satellite networks, it becomes an attractive objective to take into account the self-similar nature of Internet traffic in MAC protocol designs. This paper presents a novel predictive demand assignment multiple access (PRDAMA) protocol for packet communications over broadband satellite networks. PRDAMA allocates free bandwidth resources by estimating the positive varying trend of the Internet traffic to facilitate prediction of the bandwidth requirements of the earth stations. Simulation results demonstrate that PRDAMA achieves a lower average delay and delay jitter compared with other DAMA protocols under highly bursty traffic due to its accurate traffic trend prediction. With less bursty traffic, PRDAMA still performs better than the other DAMA protocols under a heavy traffic load.
机译：媒体访问控制（MAC）协议负责无线资源管理，这对于卫星通信至关重要。为了提高宽带卫星网络的性能，在MAC协议的设计中应考虑应用特性。随着Internet应用的迅速扩展以及通过宽带卫星网络进行高速Internet访问的吸引力，在MAC协议设计中考虑Internet流量的自相似特性已成为一个有吸引力的目标。本文提出了一种新颖的预测需求分配多路访问（PRDAMA）协议，用于宽带卫星网络上的分组通信。 PRDAMA通过估计Internet流量的积极变化趋势来分配可用带宽资源，以帮助预测地球站的带宽需求。仿真结果表明，在高突发流量下，PRDAMA与其他DAMA协议相比具有较低的平均延迟和延迟抖动，这归因于其准确的流量趋势预测。在突发流量较少的情况下，PRDAMA在繁重的流量负载下仍比其他DAMA协议具有更好的性能。

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