<p>Similar to the electronic domain in which packet switching networks are used to transport users’ traffic (which is mostly Internet traffic), OPS networks must be set up for worldwide communications in order to transport the traffic generated by so many Internet users and applications. The only problem for an OPS network is the contention of optical packets in OPS network and the lack of optical buffering for resolving this contention. So far, many researchers and scientists have proposed practical solutions to overcome the problem of OPS networks; however this is the first book that collects all the techniques and studies them in depth. </p>