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首页> 外文期刊>Mobile computing and communications review >Leveraging Interleaved Signal Edges for Concurrent Backscatter
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Leveraging Interleaved Signal Edges for Concurrent Backscatter

机译：利用交错信号边进行并发反向散射

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摘要

One of the central challenges in backscatter is how to enable concurrent transmissions. Most backscatter protocols operate in a sequential TDMA-like manner due to the fact that most nodes cannot overhear each other's transmissions, which is detrimental for throughout and energy consumption. Recent efforts to separate concurrent signals by inverting a system of linear equations is also problematic due to varying channel coefficients caused by system and environmental dynamics. In this paper, we introduce BST, a novel physical layer for backscatter communication that enables concurrent transmission by leveraging intra-bit multiplexing of OOK signals from multiple tags. The key idea underlying BST is that the reader can sample at considerably higher rates than the tags, hence it can extract time-domain signal edges that result from interleaved transmissions of several tags. Our preliminary experiment results show that BST can achieve 5× the throughput of Buzz and 10× the throughput of TDMA-based solutions, such as EPC Gen 2.
机译：反向散射的主要挑战之一是如何启用并发传输。由于大多数节点无法监听对方的传输，因此大多数反向散射协议都以类似TDMA的方式运行，这对整个传输和能耗都是有害的。由于由系统和环境动力学引起的变化的信道系数，最近通过反转线性方程组来分离并发信号的努力也是有问题的。在本文中，我们介绍了BST，这是一种用于反向散射通信的新型物理层，它可以通过利用来自多个标签的OOK信号的位内复用来实现并发传输。 BST的关键思想是读取器可以以比标签更高的速率进行采样，因此它可以提取由多个标签的交错传输产生的时域信号沿。我们的初步实验结果表明，BST可以将Buzz的吞吐量提高5倍，将基于TDMA的解决方案（如EPC Gen 2）的吞吐量提高10倍。

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  • 来源
    《Mobile computing and communications review》 |2014年第3期|26-31|共6页
  • 作者

    Pan Hu; Pengyu Zhang; Deepak Ganesan;

  • 作者单位

    School of Computer Science, University of Massachusetts, Amherst, MA 01003;

    School of Computer Science, University of Massachusetts, Amherst, MA 01003;

    School of Computer Science, University of Massachusetts, Amherst, MA 01003;

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