Poster: A Raspberry Pi Based Data-Centric MAC for Robust Multicast in Vehicular Networks
Poster: A Raspberry Pi Based Data-Centric MAC for Robust Multicast in Vehicular Networks
复制标题
海报：基于 Raspberry Pi 的以数据为中心的 MAC，用于车辆网络中的鲁棒组播
DOI：
10.1145/3241539.3267759
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发表时间：
2018
期刊：
影响因子：
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通讯作者：
Yang, YuanYuan
中科院分区：
文献类型：
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作者：
Elbadry, Mohammed;Zhou, Bing;Ye, Fan;Milder, Peter;Yang, YuanYuan
以数据为中心的网络提供内容，而不是基于地址（什么vs.哪里）的通信原语，并且被认为是高机动性车辆网络中数据传播的合适候选者（例如，向两个方向受影响的驾驶员发送路边事故视频剪辑）。但是，当前的介质访问控制（MAC）层根据目的地址而不是内容过滤传入帧。以数据为中心的网络社区已经采用了MAC广播，具有很高的帧损失率和很大的差异。我们提出了V-MAC，一个以数据为中心的MAC层，通过内容过滤帧。它支持MAC级别的一对多组播，并确保在所有接收方之间具有统一和可控的小帧损失率，尽管它们的接收质量不同。我们使用树莓派和WiFi加密狗创建了一个V-MAC原型。在极端噪声环境下的实验表明，该方法将帧丢失从50%（广播）降低到10%以下，并且在多个接收机之间保持一致。
Data-centric networks provide content instead of address (what vs. where) based communication primitives, and have been argued to be the proper candidate for data dissemination in high mobility vehicular networks (e.g., delivering road side accident video clips to affected drivers in both directions). However, current Medium Access Control (MAC) layers filter incoming frames based on destination addresses, not content. The data-centric network community has resorted to MAC broadcast, with high and greatly varying frame loss rates. We propose V-MAC, a data-centric MAC layer that filters frames by content. It supports one to many multicast at MAC level, and ensures a uniform and controllable small frame loss rate across all receivers, despite their varying reception qualities. We have created a V-MAC prototype using Raspberry Pis and WiFi dongles. Experiments under extremely noisy environment show that it reduces frame loss from 50% (broadcast) to less than 10%, and consistently among multiple receivers.