NeTS-ProWin: Cognitive Radios for Open Access to Spectrum

Nets-ProWiN：开放获取频谱的认知无线电奖0434854罗杰斯摘要纳拉扬·曼达扬频谱监管传统上是由技术进步推动的，从改进的过滤器到创造了蜂窝革命的复杂逻辑和无线电技术。然而，最近出现了一种新的范式，在这种范式中，监管驱动了技术。从ISM频段开始的一项适度的“开放频谱”监管试验，催生了一系列令人印象深刻的重要技术和创新用途，从无绳电话和无线局域网到抄表和家庭娱乐产品。由于这些系统必须适应各种不可预测的条件，因此被称为“认知无线电”的新兴技术在系统容量和服务质量方面提供了显著的潜在好处。在这一假设下，研究了一些典型的认知策略，以确定以最小的“成本”提供最大收益的方法。这些策略包括：(1)可用频谱的发现，(2)支持有效操作的信息，(3)冲突情况下的协商，(4)有效共享的编码，以及(5)冲突情况下的支配。由于这些策略在技术上是不同的，所以它们的成本是根据硬件和协议复杂性的公共指标来衡量的。这项工作结合了基本分析、计算机模拟和使用WINLAB开发的试验台进行的物理仿真。结果将确定一套不同的设计战略的潜在好处和成本，并将通过实地从业人员研讨会进行传播。

NeTS-ProWiN: Cognitive Radios for Open Access to SpectrumAward 0434854Narayan Mandayam, RutgersAbstractSpectrum regulation has traditionally been driven by improvements in technology, from improved filters to the sophisticated logic and radio techniques that created the cellular revolution. More recently, however, a new paradigm has emerged in which regulation has driven technology. A modest regulatory experiment in "open spectrum" that began in the ISM bands has spawned an impressive variety of important technologies and innovative uses, from cordless phones and wireless LANs to meter readers and home entertainment products. Since these systems must adapt to a wide variety of unpredictable conditions, the emerging technologies called "cognitive radio" offer significant potential benefits in system capacity and service quality.This investigation begins with the forward-looking assumption that a perfect cognitive radio exists and can configure itself to any transceiver type. Under this assumption, a number of exemplary cognitive strategies are studied to identify the approaches that offer the greatest benefit at the least "cost". These strategies include: (1) discovery of available spectrum, (2) information to support efficient operation, (3) negotiation in situations of conflict, (4) coding for efficient sharing, and (5) domination in situations of conflict. Because these strategies are technologically diverse, their costs are measured against the common metrics of hardware and protocol complexity.This work is carried out using a combination of fundamental analysis, computer simulation and physical emulation using testbeds developed at WINLAB. The results will identify the potential benefits and costs of a diverse set of design strategies, and will be disseminated via a workshop for practitioners in the field.