Data dissemination in urban Vehicular Ad hoc Networks with diverse traffic conditions
Data dissemination in urban Vehicular Ad hoc Networks with diverse traffic conditions
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具有不同交通条件的城市车载自组织网络中的数据传播
DOI：
10.1109/iscc.2013.6754989
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发表时间：
2013
期刊：
影响因子：
--
通讯作者：
A. Loureiro
中科院分区：
文献类型：
--
作者：
Guilherme Maia;L. Villas;A. Boukerche;A. C. Viana;Andre L. L. Aquino;A. Loureiro
设想中的VANESTs应用程序将广泛依赖于广播消息的交换，以将数据传输到位于感兴趣区域的车辆。文献中已经提出了许多数据传播协议来抑制这种需求。令人惊讶的是，它们中的大多数被设计成专门在密集或稀疏网络下运行。然而，可以合理地假设不同的交通状况将在现实场景中共存。因此，数据传播协议的VANEQUALITY应设计为感知交通状况在手，并相应地适应。考虑到这一点，在本文中，我们提出了HyDiAck，一个数据传播协议的城市VANESTs，完全依赖于本地的一跳邻居的信息，以提供密集和稀疏的网络下的消息。在密集场景中，HyDiAck会选择转发区域内的车辆向其他车辆重新广播消息。此外，该协议采用隐式确认，以保证在稀疏场景下的消息传递的鲁棒性。当比较两个相关的协议- UV-CAST和slotted-1-persistence -模拟结果为曼哈顿网格和真实的城市街道的情况下，HyDiAck减少了延迟传播消息和网络开销，也保证了消息传递到所有车辆在感兴趣的区域。
Envisioned applications for VANETs will rely extensively on the exchange of broadcast messages to deliver data to vehicles located in a region of interest. Many data dissemination protocols have been proposed in the literature to suppress this need. Surprisingly, most of them were designed to operate exclusively under dense or sparse networks. However, it is reasonable to assume that diverse traffic conditions will coexist in realistic scenarios. Therefore, data dissemination protocols for VANETs should be designed to perceive the traffic condition at hand and adapt accordingly. With this in mind, in this paper we propose HyDiAck, a data dissemination protocol for urban VANETs that relies exclusively on local one-hop neighbor information to deliver messages under dense and sparse networks. In dense scenarios, HyDiAck selects vehicles inside a forwarding zone to rebroadcast messages to further vehicles. Moreover, the protocol employs implicit acknowledgements to guarantee robustness in message delivery under sparse scenarios. When compared to two related protocols - UV-CAST and slotted-1-persistence - simulation results for both Manhattan grid and real city street scenarios show that HyDiAck decreases both the latency to disseminate messages and the network overhead, and also guarantees message delivery to all vehicles in the region of interest.
影响因子：
12.9
作者：
Tonguz, Ozan K.;Wisitpongphan, Nawaporn;Bai, Fan
通讯作者：
Bai, Fan