Traffic conformance issues in passive optical networks: challenges and solutions

Multidomain Optical Networks: Issues and Challenges

Carriers usually deploy traffic engineering (TE) technologies such as generalized multi-protocol label switching (GMPLS)-TE to offer valueadded services. Nevertheless, these technologies are restricted to intra-domain networks, narrowing the scope of potential service offers. Currently, there is a clear demand to extend guaranteed service offers beyond domain boundaries. To support inter-domain...

Multidomain Optical Networks: Issues and Challenges

The problem of upstream traffic synchronization in Passive Optical Networks

Abstaract. Recently Passive Optical networks gained a lot of attention as a possible solution to the broadband local access network. PON may be deployed as a bus, ring, or tree topology. While it is a very cost-effective solution, it has some unique problems, not found in backbone or metropolitan networks. One of such problems is upstream traffic synchronization. In the upstream direction PON i...

Optimization in Optical Communication Networks: Issues and Challenges

The transmission capacity of a link in today’s optical networks has increased extensively due to wavelengthdivision-multiplexing (WDM) technology. Optical wavelength division multiplexing (WDM) networking technologies have delivered unprecedented terabit level bandwidth scalability over fiber-optic substrates. Optical-transmission techniques have been researched for quite some time. The field h...

Wireless Sensor Networks: Issues, Challenges and Survey of Solutions

Wireless ad-hoc sensor networks have recently emerged as a premier research topic. They have great longterm economic potential, ability to transform our lives and pose many new system-building challenges. Sensor networks pose a number of new conceptual and optimization problems such as location, deployment and tracking in that many applications rely on them for needed information. The past work...