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

SBIR 第二阶段：铜基蜂窝和接入回程的串扰缓解

• 批准号: 1152622
• 负责人: Oren Eliezer
• 金额: $ 50万
• 依托单位: XW, LLC
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2012
• 资助国家: 美国
• 起止时间: 2012-03-15 至 2014-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1152622&HistoricalAwards=false
• 关键词: SBIR; Phase; II; Crosstalk; Mitigation

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.

该小型企业创新研究第二阶段项目的目标是实现一种经济高效的解决方案，以提高串扰受限的铜介质蜂窝和接入回程网络中的数据吞吐量，从而满足这些网络中不断增长的容量需求。由于大多数地点没有光纤，现有设备仅限于使用双绞线，通常会避免使用频谱高效的 VDSL，而 VDSL 的高容量是以易受干扰为代价的。 该项目第一阶段开发的技术以及作为第二阶段项目一部分的硬件和软件实施将有效解决VDSL的这一漏洞，并通过串扰消除恢复其大部分潜在容量。该公司的关键创新在于非迭代、低延迟、降低复杂性的动态干扰消除算法，这些算法极大地提高了性能，同时在现有 VDSL2 多通道解决方案中只需要增加不到 10% 的硅面积。该项目将涉及研究和开发方面，以及与最小化复杂性和功耗相关的系统实施挑战。基于第一阶段项目对该技术迫切需要的吞吐量增强及其商业潜力的成功验证，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下铜缆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，同时还抵消新光纤部署的高额费用。 公司还通过与大学的合作伙伴关系实现了效益，在大学中，公司与主要教员和学生密切合作，提供研讨会，并开展持续的实习计划，从而雇用全职毕业生。 根据公开的报告，到 2015 年，北美的移动数据流量预计将增长 20 倍以上。数据消耗的大幅增长主要是由于智能手机和带宽密集型应用的快速普及所带来的，这已经给回程基础设施带来了巨大的负担，回程基础设施负责承载蜂窝、互联网和固定电话语音流量的电信。解决带宽拥塞需要显着改善电信基础设施，包括回程和接入，这两者在北美主要是基于铜线的。该公司的干扰抑制技术将以经济有效的方式解决这个问题，通过现有基础设施满足不断增长的带宽需求。