SGER: Optimization Problems in Next Generation Networks

SGER：下一代网络的优化问题

• 批准号: 0750992
• 负责人: Weili Wu
• 金额: --
• 依托单位: University of Texas at Dallas
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-09-15 至 2009-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0750992&HistoricalAwards=false
• 关键词: SGER; Optimization; Problems; Next; Generation

One of goals in Cyber-Infrastructure project is for people to have abilityof doing remote data gathering and remote scientific experiments efficiently. This demands high-speed communication networks with mobile connectivity and flexible deployment. The wireless access network on top of the optical core network is an important ideal architecture for such a target. Indeed, the optical network in core provides the efficient high-speed communication with high bandwidth and the wireless network in access provides mobile communication with flexible deployment. The advantage of fiber-optical backbone networkcombined with wireless technology has gained more and more interests in the study of the next generation communication networks. One of important issues is the optimal resource management. The increasing need of mission-critical traffic and real-time traffic from businesses and individuals has made the computer communication network grow very rapidly. Today there are a large amount of network resources and also a large amount of traffic. Therefore, efficient utilization of network resources becomes a very important task, which has impact in survivability, energy efficiency, and quality of service (QoS).We propose an integrated research project that studies various optimization problems on (a) resilience schemes, including protection and restoration schemes, for optical wavelength division multiplexing (WDM) networks to survive from failures with efficient utilization of network resource and less service disruption, (b) sensors' active/sleep schedules for the wireless sensor networks to achieve longer lifetime or energy efficiency, and (c) tradeoff between two layers to achieve multi-layer optimization.

网络基础设施项目的目标之一是让人们有能力有效地进行远程数据收集和远程科学实验。这需要具有移动连接性和灵活部署的高速通信网络。光核心网络之上的无线接入网络是实现这一目标的重要理想架构。事实上，核心的光网络提供了高带宽、高效的高速通信，接入的无线网络提供了灵活部署的移动通信。光纤骨干网与无线技术相结合的优势在下一代通信网络的研究中引起了越来越多的兴趣。重要问题之一是优化资源管理。企业和个人对关键任务流量和实时流量的需求不断增长，使得计算机通信网络发展非常迅速。现在的网络资源非常多，流量也非常大。因此，网络资源的有效利用成为一项非常重要的任务，这对生存性、能源效率和服务质量（QoS）都有影响。我们提出了一个综合研究项目，研究以下方面的各种优化问题：（a）弹性方案，包括保护和恢复方案，使光波分复用（WDM）网络能够从故障中幸存下来，有效利用网络资源并减少服务中断，（b）传感器的 无线传感器网络的活动/睡眠时间表以实现更长的寿命或能源效率，以及（c）两层之间的权衡以实现多层优化。