论文标题
对WI-RED降低频谱消耗技术的实验评估
Experimental Evaluation of Techniques to Lower Spectrum Consumption in Wi-Red
论文作者
论文摘要
在Wi-Fi上进行了无缝的冗余，已显示能够切实提高沟通质量，从而提供行业级别的可靠性。但是，这也意味着更高的网络流量，这通常是难以忍受的，因为无线频谱是共享和稀缺的资源。为了解决这一缺点，WI-RED提案包括合适的复制机制，通过防止在不必要的框架重复方面传输来减少频谱消耗。 在本文中，通过实验评估了这种机制节省无线带宽的能力。为此，已经定义了特定的分析后技术，该技术允许对简单测试台进行这样的评估，该测试床依赖于简单的冗余，并且不需要对适配器的固件进行任何更改。结果表明，如果没有沟通质量，光谱消耗会明显降低。如果潜伏期容忍略有恶化，则可以进一步节省。
Seamless redundancy layered atop Wi-Fi has been shown able to tangibly increase communication quality, hence offering industry-grade reliability. However, it also implies much higher network traffic, which is often unbearable as the wireless spectrum is a shared and scarce resource. To deal with this drawback the Wi-Red proposal includes suitable duplication avoidance mechanisms, which reduce spectrum consumption by preventing transmission on air of inessential frame duplicates. In this paper, the ability of such mechanisms to save wireless bandwidth is experimentally evaluated. To this purpose, specific post-analysis techniques have been defined, which permit to carry out such an assessment on a simple testbed that relies on plain redundancy and do not require any changes to the adapters' firmware. As results show, spectrum consumption decreases noticeably without communication quality is impaired. Further saving can be obtained if a slight worsening is tolerated for latencies.
