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To improve the local accessibility performance, some important services are usually replicated and maintained in multiple datacenters. A user can request any datacenter which hosts the required service. The traditional end-to-end path is gradually replaced by the end-to-service path. To resist the frequently occurred natural disasters or human-made faults, survivability technologies need to be deployed...
In this paper, we develop two joint routing and resource allocation algorithms for stealth and ordinary services in optical networks. The transmission of stealth service needs to be hidden in ordinary services to achieve a better performance in privacy. Two heuristic algorithms construct paths for stealth and ordinary services base on the different routing methods. The proposed algorithms improve...
Optical steganography can realize the broadening of signal in the time domain through the group velocity dispersive, and transform the signal which needs to be protected into system-like noise hidden in the public service for transmission. Because of the random distribution of public and stealth services in the optical network, the establishment of end-to-end stealth channels often needs to connect...
A modified double sideband modulation(DSB) scheme to realize frequency doubling and wavelength reuse in the uplink is proposed. In the modified DSB scheme, by adjusting the phase difference between two arms of the intensity modulator, the optical carrier and the two first-order sidebands are generated, after beaten by the photodiode, a high spectrum purity and low phase noise millimeter-wave (mm-wave)...
Due to the fact that network connectivity has a fixed value for a given network, only using network connectivity to improve the survivability of data center networks will reach bottleneck. The content connectivity, which is defined as the reachability of content from any point of a network becomes research focus. In this letter, the definition of $k$-node (edge) content connectivity is given. Theoretical...
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