Impact of Mobility Constraints on Epidemic Broadcast Mechanisms in Delay-Tolerant Networks
Impact of Mobility Constraints on Epidemic Broadcast Mechanisms in Delay-Tolerant Networks
复制标题
延迟容忍网络中移动性限制对流行病广播机制的影响
DOI：
10.1109/waina.2012.228
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发表时间：
2012
期刊：
影响因子：
--
通讯作者：
M. Imase
中科院分区：
文献类型：
--
作者：
H. Ohsaki;Yosuke Yamada;Dimitri Perrin;M. Imase
在本文中，我们研究了DTNs（延迟容忍网络）中的移动性约束对流行病广播机制的影响。影响流行病广播性能的主要因素是其转发算法和节点移动性。转发算法和节点移动性对传播机制的影响已经在文献中得到了积极的研究，但这些研究通常使用无约束的移动模型。因此，本文的目的是定量研究流动性限制对传染病广播机制的影响。我们评估了三类流行病广播机制的性能- P-BCAST（基于推送的广播），SA-BCAST（自适应广播）和HP-BCAST（基于历史的P-BCAST）-与移动性约束的随机航点移动模型。我们的研究结果包括，流动性限制的存在显着提高了到达能力和传播速度的流行病广播机制，同时降低其效率。
In this paper, we investigate the effect of mobility constraints on epidemic broadcast mechanisms in DTNs (Delay-Tolerant Networks). Major factors affecting epidemic broadcast performances are its forwarding algorithm and node mobility. The impact of forwarding algorithm and node mobility on epidemic broadcast mechanisms has been actively studied in the literature, but those studies generally use unconstrained mobility models. The objective of this paper is therefore to quantitatively investigate the effect of mobility constraints on epidemic broadcast mechanisms. We evaluate the performances of three classes of epidemic broadcast mechanisms - P-BCAST (PUSH-based BroadCast), SA-BCAST (Self-Adaptive BroadCast), and HP-BCAST (History-based P-BCAST) - with a random waypoint mobility model with mobility constraints. Our finding includes that the existence of mobility constraints significantly improves the reach ability and dissemination speed of epidemic broadcast mechanisms while degrading their efficiency.