SBIR Phase II: Crosstalk Mitigation for Copper-Based Cellular and Access Backhaul

这个小型企业创新研究第二阶段项目的目标是在串扰受限的基于铜介质的蜂窝和接入回程网络中实现经济高效的解决方案，以实现更高的数据吞吐量，以满足不断增长的容量需求。由于大多数位置的光纤不可用，现有设备仅限于使用双绞线，通常会避免使用频谱效率高的VDSL，而VDSL的高容量是以易受干扰为代价的。本项目第一阶段开发的技术，以及作为第二阶段项目一部分在硬件和软件中的实施，将有效地解决VDSL的这一漏洞，并通过串扰消除恢复其大部分潜在容量。S公司的关键创新是在非迭代、低延迟、低复杂度、动态干扰消除算法方面，该算法在极大提高性能的同时，需要不到现有VDSL2多通道解决方案10%的硅片面积增加。该项目将涉及研究和开发方面，以及与最大限度地减少复杂性和电力消耗有关的系统实施挑战。基于一期项目--S成功验证该技术--S急需的产能提升及其商业潜力，预计该技术将广泛应用于铜基设备中。该项目更广泛的影响/商业潜力在于延长现有地内铜基础设施的使用寿命，从而使设备提供商能够继续将其资源集中在提供不断增加的带宽上，同时还抵消了新光纤部署的高昂费用。福利也是通过公司实现的？S与大学建立了合作伙伴关系，在大学里，公司与关键教师和学生密切合作，提供研讨会，并有一个持续的实习计划，最终导致毕业生的全职招聘。根据公开提供的报告，到2015年，北美的移动数据流量预计将增长20倍以上。这种主要由智能手机和带宽密集型应用的快速采用带来的数据消耗的大幅增长，已经给回程基础设施带来了巨大的负担，回程基础设施为蜂窝、互联网和固定电话语音流量提供电信服务。解决带宽拥堵需要显著改善电信基础设施，包括回程和接入，这两者在北美都主要基于铜缆。该公司的S干扰缓解技术将通过让现有基础设施满足不断增长的带宽需求，以经济高效的方式解决这一问题。

This Small Business Innovation Research Phase 2 project targets the realization of a cost-effective solution for achieving increased data throughputs in the crosstalk-constrained copper-medium-based cellular and access backhaul networks, to address the growing demand for capacity experienced in them. Existing equipment, confined to the use of twisted-pairs due to the unavailability of fiber in most locations, often avoids the use of spectrally efficient VDSL, whose high-capacity comes at a cost of vulnerability to interference. The technology developed in Phase 1 of this project, and its implementation in hardware and software as part of the Phase 2 project, will effectively address this vulnerability of VDSL and recover most of its potential capacity through crosstalk cancellation. The company?s key innovation is in non-iterative, low-latency, reduced-complexity, dynamic interference cancellation algorithms, which greatly enhance performance while requiring less than 10% of silicon-area increase in existing VDSL2 multi-channel solutions. The project will involve both research and development aspects, as well as system implementation challenges associated with the minimization of complexity and power consumption. Based on the Phase 1 project?s successful validation of the technology?s critically needed throughput enhancements and its commercial potential, it is anticipated that this technology will be widely incorporated in copper-based equipment. The broader impact/commercial potential of this project is in extending the useful life of the existing in-ground copper infrastructure, thus allowing equipment providers to continue to focus their resources on delivering ever-increasing bandwidths, while also offsetting the high expense of new fiber deployment. Benefits are also realized through the company?s partnerships with universities, where the company works closely with key faculty and with students, provides seminars, and has an ongoing internship program that results in the full-time hiring of graduates. According to publicly available reports, mobile data traffic in North America is expected to increase by a factor of over 20 by the year 2015. This massive increase in data consumption, brought on primarily by the rapid adoption of smart-phones and bandwidth-intensive applications, is already placing an enormous burden on the backhaul infrastructure, which carries telecommunications for cellular, internet and landline voice traffic. Resolution of the bandwidth congestion requires significant improvement in telecom infrastructure including backhaul and access, both of which are largely copper-based in North America. The company?s interference-mitigation technology will address this problem in a cost-effective manner by allowing the growing demand for bandwidth to be satisfied with the existing infrastructure.