Architecture and Performance Evaluation of a Novel Optical Packet Switch with Input Concentrators
In this paper, we propose a novel optical packet switch (OPS) architecture with input concentrators, which employ multi-input single-output optical buffers to aggregate all the incoming traffic into a small size switching fabric. Accordingly, the physical size, the number of the needed wavelength co...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-11-01
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| Series: | Photonics |
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| Online Access: | https://www.mdpi.com/2304-6732/8/11/510 |
| _version_ | 1827675555579822080 |
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| author | Hongzhen Yang Xiuwei Mao Zilu Fang Wanke Chen Ting Wang Shuna Yang Yuhu Zhao Hao Chi |
| author_facet | Hongzhen Yang Xiuwei Mao Zilu Fang Wanke Chen Ting Wang Shuna Yang Yuhu Zhao Hao Chi |
| author_sort | Hongzhen Yang |
| collection | DOAJ |
| description | In this paper, we propose a novel optical packet switch (OPS) architecture with input concentrators, which employ multi-input single-output optical buffers to aggregate all the incoming traffic into a small size switching fabric. Accordingly, the physical size, the number of the needed wavelength converters, and the economic cost of the total OPS node are decreased dramatically. However, the deployment of input concentrators introduces additional packet loss and delay, except from the contention at the switch output. A Markov model is presented to study the packet loss ratio (PLR) and average packet delay given by the input concentrators. The corresponding closed form expressions are given. The model also demonstrates that the system performance can be greatly improved by increasing the buffer size when the traffic load is not larger than 0.69315. The analytical values are compared with the simulation results. All the obtained results show that the proposed model provides satisfactory approximations under different network scenarios. Moreover, the economic cost savings of the proposed OPS node at the present time and its evolution as a function of time are also discussed in detail. The proposed architecture can also be applied in a packet enhanced optical transport network (OTN). |
| first_indexed | 2024-03-10T05:08:07Z |
| format | Article |
| id | doaj.art-084cd427aa3346b1a70027d5e9aab128 |
| institution | Directory Open Access Journal |
| issn | 2304-6732 |
| language | English |
| last_indexed | 2024-03-10T05:08:07Z |
| publishDate | 2021-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Photonics |
| spelling | doaj.art-084cd427aa3346b1a70027d5e9aab1282023-11-23T01:01:48ZengMDPI AGPhotonics2304-67322021-11-0181151010.3390/photonics8110510Architecture and Performance Evaluation of a Novel Optical Packet Switch with Input ConcentratorsHongzhen Yang0Xiuwei Mao1Zilu Fang2Wanke Chen3Ting Wang4Shuna Yang5Yuhu Zhao6Hao Chi7Information and Telecommunication Branch, State Grid Zhejiang Electric Power Co. Ltd., Hangzhou 310020, ChinaInformation and Telecommunication Branch, State Grid Zhejiang Electric Power Co. Ltd., Hangzhou 310020, ChinaInformation and Telecommunication Branch, State Grid Zhejiang Electric Power Co. Ltd., Hangzhou 310020, ChinaInformation and Telecommunication Branch, State Grid Zhejiang Electric Power Co. Ltd., Hangzhou 310020, ChinaInformation and Telecommunication Branch, State Grid Zhejiang Electric Power Co. Ltd., Hangzhou 310020, ChinaSchool of Communication Engineering, Hangzhou Dianzi University, Hangzhou 310018, ChinaSchool of Communication Engineering, Hangzhou Dianzi University, Hangzhou 310018, ChinaSchool of Communication Engineering, Hangzhou Dianzi University, Hangzhou 310018, ChinaIn this paper, we propose a novel optical packet switch (OPS) architecture with input concentrators, which employ multi-input single-output optical buffers to aggregate all the incoming traffic into a small size switching fabric. Accordingly, the physical size, the number of the needed wavelength converters, and the economic cost of the total OPS node are decreased dramatically. However, the deployment of input concentrators introduces additional packet loss and delay, except from the contention at the switch output. A Markov model is presented to study the packet loss ratio (PLR) and average packet delay given by the input concentrators. The corresponding closed form expressions are given. The model also demonstrates that the system performance can be greatly improved by increasing the buffer size when the traffic load is not larger than 0.69315. The analytical values are compared with the simulation results. All the obtained results show that the proposed model provides satisfactory approximations under different network scenarios. Moreover, the economic cost savings of the proposed OPS node at the present time and its evolution as a function of time are also discussed in detail. The proposed architecture can also be applied in a packet enhanced optical transport network (OTN).https://www.mdpi.com/2304-6732/8/11/510optical packet switch (OPS)Markov modelfiber delay line (FDL)packet loss ratio (PLR)average packet delaypacket enhanced optical transport network (OTN) |
| spellingShingle | Hongzhen Yang Xiuwei Mao Zilu Fang Wanke Chen Ting Wang Shuna Yang Yuhu Zhao Hao Chi Architecture and Performance Evaluation of a Novel Optical Packet Switch with Input Concentrators Photonics optical packet switch (OPS) Markov model fiber delay line (FDL) packet loss ratio (PLR) average packet delay packet enhanced optical transport network (OTN) |
| title | Architecture and Performance Evaluation of a Novel Optical Packet Switch with Input Concentrators |
| title_full | Architecture and Performance Evaluation of a Novel Optical Packet Switch with Input Concentrators |
| title_fullStr | Architecture and Performance Evaluation of a Novel Optical Packet Switch with Input Concentrators |
| title_full_unstemmed | Architecture and Performance Evaluation of a Novel Optical Packet Switch with Input Concentrators |
| title_short | Architecture and Performance Evaluation of a Novel Optical Packet Switch with Input Concentrators |
| title_sort | architecture and performance evaluation of a novel optical packet switch with input concentrators |
| topic | optical packet switch (OPS) Markov model fiber delay line (FDL) packet loss ratio (PLR) average packet delay packet enhanced optical transport network (OTN) |
| url | https://www.mdpi.com/2304-6732/8/11/510 |
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