Hierarchical time-sliced optical burst switching

Hierarchical time-sliced optical burst switching

To overcome the need for large buffers to store contending bursts in optical burst switched (OBS) networks, a recent variant called time-sliced OBS (TSOBS) suggested that bursts be sliced and spread across multiple frames of fixedlength time-slots. Since TSOBS is rigid in its frame structure, this paper generalises TSOBS to allow a hierarchy of frames. Termed hierarchical TSOBS (HiTSOBS), this ...

Time Sliced Optical Burst Switching

Time Sliced Optical Burst Switching is a proposed variant of optical burst switching, in which switching is done in the time domain, rather than the wavelength domain. This eliminates the need for wavelength converters, the largest single cost component of systems that switch in the wavelength domain. We examine some of the key design issues for routers that implement time sliced optical packet...

Time-synchronized Optical Burst Switching

Optical Packet/burst Switching

In OBS, edge routers aggregate traffic into variable length bursts that are sent unslotted. This limits the amount of processing in the core routers. Header and data are seperated in time, by Toffset. This allows the switch to be correctly configured by the time the data arrives. The data burst can then pass through transparently. Since OBS is bufferless, Toffset decreases by δ in every node. C...

Optical Burst Switching

An all-OPS network architecture displays a very attractive prospect for the future highly flexible optical transport networks. However, due to a variety of technical challenges, there is still a long way to go to accomplish a mature realization of an OPS network that is ready for practical deployments. Optoelectronic packet switching alleviates the implementation difficult to some degree, but a...