Invited Paper: The Audacity of Fiber-Wireless(FiWi) Networks: Revisited for Clouds and Cloudlets

作     者：Martin Maier Bhaskar Prasad Rimal 

作者机构：Optical Zeitgeist Laboratory 

出 版 物：《China Communications》 (中国通信（英文版）)

年 卷 期：2015年第12卷第8期

页      面：33-45页

核心收录：

学科分类：0810[工学-信息与通信工程] 0808[工学-电气工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 0839[工学-网络空间安全] 08[工学] 0803[工学-光学工程] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

主　　题：无线接入网络 移动网络 光纤 阵列波导光栅 存储能力 分布式处理 应用程序 增强现实 

摘      要：There is a growing awareness among industry players of reaping the benefits of mobile-cloud convergence by extending today s unmodified cloud to a decentralized two-level cloud-cloudlet architecture based on emerging mobile-edge computing(MEC) capabilities. In light of future 5G mobile networks moving toward decentralization based on cloudlets, intelligent base stations, and MEC, the inherent distributed processing and storage capabilities of radio-and-fiber(R&F) networks may be exploited for new applications, e.g., cognitive assistance, augmented reality, or cloud robotics. In this paper, we first revisit fiber-wireless(Fi Wi) networks in the context of conventional clouds and emerging cloudlets, thereby highlighting the limitations of conventional radio-overfiber(Ro F) networks such as China Mobile s centralized cloud radio access network(C-RAN) to meet the aforementioned trends. Furthermore, we pay close attention to the specific design challenges of data center networks and revisit our switchless arrayedwaveguide grating(AWG) based network with efficient support of east-west flows and enhanced scalability.