Abstract

The elastic optical network (EON) based on the optical orthogonal frequency-division multiplexing (O-OFDM) technology is a promising candidate for accommodating the uncertainty and heterogeneity of the traffic across future Internet. Advance reservation (AR) is essential to support initial-delay-tolerant services, such as e-science and grid computing, which are making significant contributions to the Internet traffic. Therefore, we expect that it is necessary for future EONs to support AR requests. In this paper, we study dynamic service provisioning of AR requests in EONs. These AR requests permit certain initial-delay during setting-up, as long as the resources are allocated before a preset deadline. We propose several algorithms that combine request scheduling in the time domain with routing, modulation and spectrum assignment (RMSA) in the spectrum domain. Specifically, with the combination of a routing path selection policy and a request scheduling strategy, the algorithm constructs a weight matrix for each pending AR request and provisions the request with it. We design numerical simulations to investigate the algorithms' performance in terms of three metrics, i.e., blocking probability, average spectrum efficiency, and average initial-delay. Based on the simulation results and computational complexity analysis, we provide suggestions on how to choose routing path selection policy and request scheduling strategy for provisioning AR requests dynamically in EONs. To the best of our knowledge, this is the first attempt to address dynamic service provisioning of AR requests in EONs.

© 2013 IEEE

Crosstalk-aware spectrum defragmentation by re-provisioning advance reservation requests in space division multiplexing enabled elastic optical networks with multi-core fiber

Yongli Zhao, Liyazhou Hu, Ruijie Zhu, Xiaosong Yu, Yajie Li, Wei Wang, and Jie Zhang
Opt. Express 27(4) 5014-5032 (2019)

Outright fit resource allocation approach for advance reservation requests in elastic optical networks

Ujjwal Ujjwal and Jaisingh Thangaraj
J. Opt. Commun. Netw. 14(5) 327-338 (2022)

Dynamic Resource Allocation for Immediate and Advance Reservation in Space-Division-Multiplexing-Based Elastic Optical Networks

Seitaro Sugihara, Yusuke Hirota, Shohei Fujii, Hideki Tode, and Takashi Watanabe
J. Opt. Commun. Netw. 9(3) 183-197 (2017)

Fragmentation-aware service provisioning for advance reservation multicast in SD-EONs

Shengru Li, Wei Lu, Xiahe Liu, and Zuqing Zhu
Opt. Express 23(20) 25804-25813 (2015)

Static resource allocation of advanced reservation requests in elastic optical networks

Yi Zhao, Qi Zhang, Xiangjun Xin, Yiqiang Li, Ran Gao, Ying Tao, Qinghua Tian, Feng Tian, Dong Chen, and Guixing Cao
Appl. Opt. 59(5) 1420-1429 (2020)