OnionMap: A Scalable Geometric Addressing and Routing Scheme for 3D Sensor Networks

OnionMap: A Scalable Geometric Addressing and Routing Scheme for 3D Sensor Networks
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OnionMap:3D 传感器网络的可扩展几何寻址和路由方案

DOI:
10.1109/twc.2014.2329677
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发表时间:
2015-01
影响因子:
10.4
通讯作者:
Li Bo
Li Bo
中科院分区:
计算机科学1区
文献类型:
--
作者:
Cai Kechao;Yin Zhimeng;Jiang Hongbo;Tan Guang;Guo Peng;Wang Chonggang;Li Bo

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在传感器网络中,几何路由或地理路由是一种很有前途的可扩展路由方法。尽管它在2-D网络中取得了成功,但很少有设计可用于3-D网络,这些设计可以确保仅使用小的每个节点状态的短路由,而不会在节点上引起高负载不平衡。在本文中,我们提出了一种新的寻址和路由方案,即,OnionMap,用于实现上述目标的3-D传感器网络,仅使用连接信息并以线性消息成本。其关键思想是将三维网络分解为一组连接的层,然后将其映射到一组同心球结构(类似于洋葱)。在每个球体上,使用离散Ricci流方法为每个节点分配一组坐标,允许在该球体内进行纯粹的贪婪路由;在不同的球体上,层对齐算法有助于旋转和缩放球体,以形成指导全局路由的一致的全局坐标系。理论分析和仿真表明OnionMap在路径拉伸、节点存储和负载平衡方面优于现有的解决方案。
Geometric routing or geo-routing has been shown as a promising approach to scalable routing in sensor networks. Despite its success in 2-D networks, very few designs are available for 3-D networks that can ensure short routes using only small per-node state, without incurring high load imbalance on the nodes. In this paper, we propose a novel addressing and routing scheme, i.e., OnionMap, for 3-D sensor networks that achieve the above goals, using solely connectivity information and at a linear message cost. The key idea is to decompose a 3-D network into a set of connected layers, which are then mapped to a set of concentric sphere structures (similar to an onion). On each sphere, a discrete Ricci flow method is used to assign each node a set of coordinates that permits purely greedy routing within that sphere; across the different spheres, a layer alignment algorithm helps rotate and scale the spheres, to form a coherent global coordinate system that guides global routing. Theoretical analysis and simulation show OnionMap's advantages over state-of-the-art solutions in path stretch, per-node storage, and load balance.
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