Energy and bandwidth efficient technologies for DOCSIS networks

使用有线电视基础设施的有线互联网接入提供了从互联网服务提供商到最终用户的网络边缘连接。为了满足日益增长的数据速率需求，由多个系统运营商组成的标准组织CableLabs发布了DOCSIS的更新版本，称为DOCSIS 3.1。在本提案中，我们将研究和开发技术，通过利用DOCSIS 3.1的新特性，降低实现复杂性，显著提高DOCSIS网络的频谱和能量效率。对于DOCSIS网络，优化技术将是必不可少的，以满足用户的期望，同时通过降低网络基础设施部署成本最大化运营商的收入。本着这种精神，我们将开发：(i)下游剖面选择方法，以提高频谱效率；（ii）上游剖面选择和调度方案，以提高频谱效率；（iii）有效的信道绑定机制，以提高能源效率，并在上下游流量需求和可用总带宽之间取得平衡。这些将是未来一代有线网络发展的关键技术，因此，将对塑造未来有线通信行业的宽带数据产生重大影响。该研究的预期结果将提高频谱利用率，从而实现具有成本竞争力的DOCSIS网络。

Cable Internet access that uses the cable television infrastructure provides network edge connectivity from the Internet service provider to an end user. In order to meet the growing data rate demand, the standard organization of multiple system operators, i.e., CableLabs, has released an update of DOCSIS referred to as DOCSIS 3.1. In this proposal, we will research and develop technologies that can improve the spectral and energy efficiency of DOCSIS networks significantly by exploiting the new features of DOCSIS 3.1 with reduced implementation complexities. For DOCSIS networks, optimized technologies will be essential in order to meet the user expectations while maximizing the operators' revenues through reduced network infrastructure deployment costs. With this spirit, we will develop: (i) downstream profile selection methods in order to improve the spectral efficiency (ii) upstream profile selection and scheduling schemes to improve spectral efficiency and, (iii) efficient channel bonding mechanisms to improve energy efficiency and to strike a balance between upstream and downstream traffic demands and available total bandwidth. These will be key techniques for the evolving future generation of cable networks, and therefore, will have significant impact on shaping the broadband data over cable communications industry in the future. The results anticipated from this research will enable improved spectrum utilization, leading to cost-competitive DOCSIS networks.