NeTS ProWiN: An Open Systems Approach for Rapid Prototyping Waveforms for Software Defined Radio

这项工作的重点是开发和分发一个开源软件通信体系结构（SCA），称为OSSIE。我们为软件定义无线电（SDR）研究社区提供必要的工具和软件，以探索和开发跨OSI堆栈多层的软件定义无线系统，从而在功耗和数据吞吐量方面实现更高效的SDR设计。这允许以最小的硬件依赖性快速原型设计和测试新波形。正在研究的基本研究问题包括算法开发、跨层优化和高度可移植代码的快速开发。由此产生的工具套件使我们能够解决许多以前的SCA限制。具体来说，我们是（a）开发SCA代码大大增强了可移植性，特别是在无线电的FPGA方面;（B）通过规避使用CORBA来减少开销;（c）增加无线电的灵活性，以支持实现认知无线电所需的动态适应;以及（d）通过设计软件使能的电源管理技术，利用信号特性来降低功耗。 此外，我们正在开发一种新的无线电设计方法，在这种方法中，正在开发的无线电可以在使用测试仪器和“软件包装器”的框架内进行仿真，以方便空中测试。然后，测试仪器被SCA兼容的硬件取代，以创建原型无线电，这一技术大大缩短了开发时间。通过使用OSSIE定义良好的应用程序接口，不具有SCA兼容硬件结构的无线电仍然可以使用这种方法进行开发。

The focus of this effort is the development and distribution of an open source software communications architecture (SCA), referred to as OSSIE. We provide the software defined radio (SDR) research community the tools and software necessary to explore and develop software-defined wireless systems across multiple layers of the OSI stack, resulting in more efficient SDR design in terms of power consumption and data throughput. This allows rapid prototyping and testing of new waveforms with minimal hardware dependencies. Underlying research issues being investigated include algorithm development, cross-layer optimization, and the rapid development of highly portable code. The resulting suite of tools allows us to address a number of previous SCA limitations. Specifically we are (a) developing SCA code having greatly enhanced portability, especially with regards to FPGAs in radios; (b) reducing overhead by circumventing the use of CORBA; (c) increasing the flexibility of the radio to support the dynamic adaptation necessary for implementing cognitive radios; and (d) reducing power consumption by designing software enabled power management techniques that take advantage of signal properties. In addition we are developing a new radio design methodology in which the radio under development can be emulated within the framework using test instruments and "software wrappers" to facilitate over-the-air testing. Test instruments are then replaced with SCA-compatible hardware to create the prototype radio, a technique that significantly reduces development time. Radios not having a SCA compliant hardware structure can still be developed using this methodology through the use of OSSIE's well-defined Application Program Interfaces.