Satellite Spot Beam and Decollision Algorithm for Pure Collective Aloha MAC Protocol

2018 IEEE International Conference on Service Operations and Logistics, and Informatics (SOLI) Pub Date : 2018-07-01 DOI:10.1109/SOLI.2018.8476756

D. Wong, Qian Chen, Xiaoming Peng, F. Chin

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引用次数: 1

Abstract

Modern satellite random access protocols require advanced medium access control (MAC) protocols to achieve high system throughput. There are both asynchronous and synchronous satellite MAC protocols in the literature. The former MAC protocols do not require packet slot boundaries alignment using a synchronization mechanism. Here, our key contributions are a proposed Pure Collective Aloha MAC protocol with Decollision Algorithm (DA) and Spot Beam (SB) (PCA-DA-SB) and its closed-form throughput formulation. This is an asynchronous MAC protocol. A batch of packets is buffered before being transmitted sequentially into the channel for this proposed MAC protocol and both the DA and the SB technologies are utilized to enhance the system throughput. The analytical formulation of the proposed MAC protocol is derived in detail. The numerical results, using the closed-form formulation and the computer simulations, show that the peak throughput of the proposed MAC protocol is up to 90% exceeding that of a Pure Aloha (PA) MAC protocol with the DA and the SB technologies.

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纯集体Aloha MAC协议的卫星点波束和解碰撞算法

现代卫星随机接入协议需要先进的介质访问控制(MAC)协议来实现高系统吞吐量。文献中有异步和同步卫星MAC协议。以前的MAC协议不需要使用同步机制对包槽边界进行对齐。在这里，我们的主要贡献是提出的具有deccollision Algorithm (DA)和Spot Beam (SB) (PCA-DA-SB)的Pure Collective Aloha MAC协议及其封闭形式的吞吐量公式。这是一个异步MAC协议。在将一批数据包按顺序送入信道之前，对所提出的MAC协议进行缓冲，并利用DA和SB技术来提高系统吞吐量。详细推导了所提出的MAC协议的解析公式。采用封闭公式和计算机模拟的数值结果表明，所提出的MAC协议的峰值吞吐量比采用DA和SB技术的纯Aloha (PA) MAC协议的峰值吞吐量高出90%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2018 IEEE International Conference on Service Operations and Logistics, and Informatics (SOLI)

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