Multi-Protocol Label Switching with Orthogonal Stacking Label Codes to Enhance Data Packets Routing Capability

• Main Authors: Yu-LinChen, 陳昱霖
• Other Authors: Jen-Fa Huang
• Format: Others
• Language: en_US
• Published: 2014
• Online Access: http://ndltd.ncl.edu.tw/handle/utsjvc

碩士 === 國立成功大學 === 電腦與通信工程研究所 === 102 === Nowadays, internet has become an indispensable part of our life. Internet protocol (IP) is the general protocol in the network. In classical IP network, the data packet is routed to the destination according to its IP address at each router. With the development of technique, the processing load of router becomes huge since the rapid increasing of information and multimedia data. To provide large number of clients searching for high-quality applications, evolvement of internet with faster information transportation is needed. Recent years, multi-protocol label switching (MPLS) presents an answer. It simplifies the forwarding function of routers. Since the label de-composition in network layer is averted, great processing delay is shortened at each node. In this thesis, we propose a structure for achieving optical MPLS. This structure uses spectral-amplitude coding optical code-division multiple-access (SAC-OCDMA) and label stacking techniques to generate the optical labels and be added to data packet. Each router implements fast label switching by recognizing the stacking labels only. In analyzing the system performance, we emphasize the part of label recognition. We have considered the effects of thermal noise and phase-induced intensity noise (PIIN) which causing the bit error rate of label recognition. The results show that when the number of stacking labels increase, the BER will become large. If we want to achieve better BER, the bigger code length for generating optical labels is need.