Abstract
In order to address a diverse and demanding set of service
and network drivers, several technology candidates with inherent physical
layer (PHY) differences are emerging for future optical access networks. To
overcome this PHY divide and enable both cost and bandwidth efficient heterogeneous
technology co-existence in future optical access, we propose a novel Orthogonal
Frequency Division Multiple Access (OFDMA)-based “meta-MAC”, which
encapsulates PHY variations and enables fair inter-technology bandwidth arbitration.
The new software-defined meta-MAC is envisioned to work on top of constituent
MAC protocols, and exploit virtual OFDMA subcarriers as both finely granular
and scalable bandwidth assignment units. We introduce important OFDMA meta-MAC
design principles, and propose an elaborate three-stage dynamic resource provisioning
scheme that satisfies the key requirements. The performance benefits of the
meta-MAC concept and the proposed dynamic resource provisioning schemes in
terms of spectrum management flexibility and support of diverse services are
verified via real-time traffic simulation, confirming the attractiveness of
the new approach for future optical access systems.
© 2013 IEEE
PDF Article
More Like This
Cited By
You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Login to access Optica Member Subscription