caa a22 4500 445870877 CHVBK 20180317145511.0 cr unu---uuuuu 170323e20111001xx s 000 0 eng 10.1007/s11107-011-0316-0 doi (NATIONALLICENCE)springer-10.1007/s11107-011-0316-0 Study on the problem of routing, wavelength, and time-slot assignment towards optical time-slot switching technology [Elektronische Daten] [Guangjun Shan, Guangxi Zhu, Deming Liu] Conventional optical burst switching (OBS) is incapable of providing connection-oriented service, and burst loss is more likely to occur with increasing of traffic load due to its inherent architecture where the burst size is variable. In this paper, we propose and evaluate the optical time-slot switching technology, in which the fixed-size time-slot is adopted as the basic switching granularity, and switching is done in the time domain, rather than the wavelength domain. Also, we prove that time-slot switching has an equivalent function to eliminate data conflict relative to wavelength converter. Subsequently, the routing, wavelength, and time-slot assignment problem is studied in this paper. An adaptive weight function is introduced to the routing and wavelength selection algorithm, then several useful approaches, such as the train approach, wagon approach and p-distribution approach, are presented for time-slot assignment and scheduling. The results show that our scheme can perform better than conventional OBS in the aspect of blocking performance, quality of service, and class of service. Springer Science+Business Media, LLC, 2011 Optical burst switching (OBS) nationallicence Optical time-slot switching (OTS) nationallicence Quality of service nationallicence Blocking probability nationallicence Routing, wavelength, and time-slot assignment (RWTA) nationallicence Shan Guangjun Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, China aut Zhu Guangxi Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, China aut Liu Deming College of Optoelectronic Science and Engineering, Huazhong University of Science and Technology, Wuhan, China aut Photonic Network Communications Springer US; http://www.springer-ny.com 22/2(2011-10-01), 162-171 1387-974X 22:2<162 2011 22 11107 https://doi.org/10.1007/s11107-011-0316-0 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11107-011-0316-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Shan Guangjun Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, China aut NATIONALLICENCE 700 1- Zhu Guangxi Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, China aut NATIONALLICENCE 700 1- Liu Deming College of Optoelectronic Science and Engineering, Huazhong University of Science and Technology, Wuhan, China aut NATIONALLICENCE 773 0- Photonic Network Communications Springer US; http://www.springer-ny.com 22/2(2011-10-01), 162-171 1387-974X 22:2<162 2011 22 11107 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer