## Abstract

Considering the flexibility characteristic of advanced reservation (AR)
requests, the problem of static routing, modulation, spectrum, and
time assignment (RMSTA) of AR requests in elastic optical networks is
studied in this paper, in order to deploy the spectrum resource
economically and enable more requests to be served. The
multi-objective integer linear program (ILP) model, which can minimize
the maximum utilized frequency and time slot indices as well as find a
trade-off between them, is used to formulate the RMSTA problem. Then
the proportion optimal RMSTA (PO-RMSTA) heuristic algorithm with three
sorting strategies is proposed to get the sub-optimal solutions. The
PO-RMSTA algorithm and sorting strategies, *ascending order of elastic time (AET), descending order of data
volume (DDV), and ascending order of alternative schemes
(AAS)*, are simulated in our work and proved to obtain the
approximate optimal solutions. The sorting policy AET achieved the
best performance when minimizing the maximum utilized frequency slot
index, whereas the sorting policy DDV worked best when minimizing the
maximum utilized time slot index. As for the compromise between two
indices, both AET and AAS provided satisfying results.

© 2020 Optical Society of America

Full Article | PDF Article## Corrections

10 February 2020: A correction was made to Fig. 3.

**More Like This**

Seitaro Sugihara, Yusuke Hirota, Shohei Fujii, Hideki Tode, and Takashi Watanabe

J. Opt. Commun. Netw. **9**(3) 183-197 (2017)

Yongli Zhao, Liyazhou Hu, Ruijie Zhu, Xiaosong Yu, Yajie Li, Wei Wang, and Jie Zhang

Opt. Express **27**(4) 5014-5032 (2019)

Mohsen Yaghubi-Namaad, Akbar Ghaffarpour Rahbar, and Behrooz Alizadeh

J. Opt. Commun. Netw. **10**(3) 240-251 (2018)