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。为了满足增长的数据速率需求，多个系统运营商的标准组织，即，CableLabs发布了DOCSIS 3.1的更新。在本提案中，我们将研究和开发技术，通过利用DOCSIS 3.1的新功能，降低实现复杂性，显著提高DOCSIS网络的频谱和能源效率。对于DOCSIS网络，优化的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限度地提高运营商的收入。本着这种精神，我们将开发：（i）下游简档选择方法，以提高频谱效率;（ii）上游简档选择和调度方案，以提高频谱效率;以及（iii）有效的信道绑定机制，以提高能量效率并在上游和下游业务需求与可用总带宽之间取得平衡。这些将是不断发展的下一代有线网络的关键技术，因此，将对未来有线通信行业的宽带数据的形成产生重大影响。这项研究的预期结果将提高频谱利用率，从而形成具有成本竞争力的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.