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首页> 外文会议>2013 10th Annual IEEE Communications Society Conference on Sensor, Mesh and Ad Hoc Communications and Networks >A rapid prototyping framework for practical OFDMA systems using Software Defined Radios
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A rapid prototyping framework for practical OFDMA systems using Software Defined Radios

机译：使用软件无线电的实用OFDMA系统的快速原型框架

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摘要

State-of-the-art wireless technologies such as LTE employ OFDMA to enable robust and efficient frequency-division multiple access, which is also promising for other scenarios, such as Wireless Mesh Networks. OFDMA can improve throughput by allocating subchannels to the users which experience the best performance on the corresponding frequencies. This has lead to a large body of work on subchannel allocation schemes which optimize throughput while guaranteeing fairness. However, most solutions are discussed at a purely theoretical and/or simulative level. In this paper, we provide a framework for prototyping such schemes on the WARP Software Defined Radio to obtain practical results with small implementation overhead. We design a mechanism which allows to analyze offline how a certain allocation technique would have performed in a previously measured scenario. Moreover, we show that our approach is stable and robust regarding practical issues. While we focus on Wireless Mesh Networks, our system can easily be adapted to infrastructure-based systems.
机译：诸如LTE之类的最新无线技术采用OFDMA来实现鲁棒和高效的频分多址，这对于诸如无线网状网络之类的其他场景也很有希望。 OFDMA可以通过将子信道分配给在相应频率上体验最佳性能的用户来提高吞吐量。这导致子信道分配方案的大量工作，这些方案在保证公平的同时优化了吞吐量。但是，大多数解决方案是在纯理论和/或模拟的级别上讨论的。在本文中，我们提供了一个在WARP软件定义无线电上对此类方案进行原型设计的框架，从而以较小的实现开销获得实际结果。我们设计了一种机制，可以离线分析某种分配技术在先前测量的场景中的性能。此外，我们表明，对于实际问题，我们的方法是稳定且可靠的。当我们专注于无线网状网络时，我们的系统可以轻松地适应基于基础架构的系统。

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