Design and Experimental Evaluation of a Cross-Layer Deadline-Based Joint Routing and Spectrum Allocation Algorithm

2019 ◽  
Vol 18 (8) ◽  
pp. 1774-1788 ◽  
Author(s):  
Jithin Jagannath ◽  
Sean Furman ◽  
Tommaso Melodia ◽  
Andrew Drozd
Keyword(s):  
Experimental Evaluation ◽  
Spectrum Allocation ◽  
Cross Layer ◽  
Allocation Algorithm ◽  
Routing And Spectrum Allocation

Spectrum Fusion Oriented Routing and Spectrum Allocation Algorithm and Spectrum Defragmentation Algorithm

2013 ◽  
Vol 42 (8) ◽  
pp. 929-935
Author(s):  
鞠卫国 JU Weiguo ◽  
黄善国 HUANG Shanguo ◽  
徐珍珍 XU Zhenzhen ◽  
郭秉礼 GUO Bingli ◽  
赵永利 ZHAO Yongli ◽  
...  
Keyword(s):  
Spectrum Allocation ◽  
Allocation Algorithm ◽  
Routing And Spectrum Allocation

Research on CLIB Routing and Spectrum Allocation Algorithm in Elastic Optical Networks

2019 ◽  
Vol 0 (0) ◽  
Author(s):  
Li Li ◽  
Zhai Ya-Fang ◽  
Li Hong-Jie
Keyword(s):  
Optical Networks ◽  
Blocking Probability ◽  
Rapid Development ◽  
Optical Network ◽  
Spectrum Allocation ◽  
Mobile Internet ◽  
High Definition ◽  
Allocation Algorithm ◽  
High Bandwidth ◽  
Routing And Spectrum Allocation

AbstractWith the rapid development of mobile Internet, high-definition video and cloud computing, users’ bandwidth demands are not only larger and larger but also more and more diverse. To solve this problem, there searchers put forward the concept of elastic optical network (EON). EON adopts the transmission mode of elastic grid, which can allocate spectrum resources flexibly and meet high bandwidth and diversity requirements at the same time. Routing and spectrum allocation (RSA) is an important issue in EON. In this paper, we present a heuristic algorithm named constrained-lower-indexed-block (CLIB) allocation algorithm for the RSA problem. The algorithm is based on the K candidate paths. When there are available spectrum blocks on multiple candidate paths, if the increase of the path length does not exceed a given threshold, the lower index spectrum would be selected for the connection request on a longer path. The aim of the algorithm is to concentrate the occupied frequency slices on one side of the spectrum and leave another side of the spectrum to the later arrived connection requests as much as possible, to reduce the blocking probability of connection requests. Simulation results show that comparing with the first-last-fit and hybrid grouping algorithms, the CLIB algorithm can reduce the blocking probability of connection requests.

Joint-Optimization Routing and Spectrum Allocation Algorithm Based on Spectrum Bit Diagram

2019 ◽  
Vol 56 (13) ◽  
pp. 130602
Author(s):  
张曙光 Shuguang Zhang ◽  
李正贤 Zhengxian Li ◽  
王伟 Wei Wang
Keyword(s):  
Spectrum Allocation ◽  
Joint Optimization ◽  
Allocation Algorithm ◽  
Routing And Spectrum Allocation
Sign in / Sign up

Export Citation Format

Share Document