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In this paper, We propose a single sideband RoF system based on MSK modulation. One sideband of terahertz wave undergoes the single sideband MSK modulation while the terahertz wave is obtained via carrier-suppression double sideband modulation. The BER performance achieves 1 × 10-9 and the sensitivity of the receiver is -17.8dBm with a data rate of 5Gb/s after 40km transmission.
Generalized multi-protocol label switching (GMPLS) is being developed by the IETF as the industry standard for transport network control planes. GMPLS defines IP based control of optical resources. Routers are expected to deliver advanced services at higher throughput while handling large amounts of label switching path (LSP) creation/deletion, traffic engineering link information exchange, and link...
Protection and survivability are very important problems in optical network. With the rapid development of WDM optical network, protection technology is paid more and more attentions. In this paper, we analyze the protection principle of WDM optical network, propose a protection method for optical network. Protection schemes can be divided into link protection, path protection, and partial path protection...
Optical systems nowadays provide the basis for cost-effective transmission of large amounts of bandwidth over the Internet, and will enable its future growth and the spreading of new applications and services. WDM wavelength multiplexing technology is the newest technology which minimizes the costs. WDM generates multiple "virtual fibers" in the current fiber cable infrastructures and makes...
The huge demand for communication network has tend to make topologies of optical networks based on wavelength division multiplexing (WDM) complex. This article proposes a new approach for optical communication network with GMPLS technology in WDM networks. GMPLS grew out of vanilla MPLS, a packet-switching technology designed to improve the efficiency of data networks. A flavor of MPLS, known as MPLS-TE,...
This paper proposes a protection scheme for the WDM network. The emergence of WDM technology has provided an unprecedented opportunity to dramatically increase the bandwidth capacity of telecommunications networks. In protection schemes, there are spare resources reserved for each protected part while those resources are not used under normal conditions. So restoration usually has better resource...
Traffic engineering (TE) is an interesting application in IP-based networks. TE main objective is to optimize the performance of a network through an efficient utilization of network resources. We study a load balancing in optical networks based on measured link loads. As a result, WDM has become a technology of choice for meeting the tremendous bandwidth demand in the communications infrastructure...
In this paper a novel multipriority reservation protocols for plastic optical fiber network is proposed. In conventional OCDMA system only allows finite units to transmit and access simultaneously according to the number of channels which be restricted by BER. To resolve this problem, a novel protocol based on slotted ALOHA is proposed in this paper. By using the reservation scheme and a distributed...
In this paper a novel multipriority reservation protocols for plastic optical fiber network is proposed. Optical transmission using POF has received much attention due to its low weight, large core diameter, flexibility, and easy install, specially its high bandwidth make POF a very attractive candidate for transmission media in transimition network based on OCDMA technology. In conventional OCDMA...
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