DOI: 10.1109/icc.2012.6363944
Abstract:
OFDM PON has been considered to be one of the most prominent next-generation broadband wired access solutions. However, based on the current tree-architecture, existing OFDM PON systems face severe challenges when increasing the scalability and data-rate performance. In this paper, we propose a novel virtual-tree architecture of an OFDMA PON system (VTOPS). Coupled with the use of inexpensive direct modulation, VTOPS simultaneously achieves high reliability, scalability, and spectrum efficiency (ie, high data...
Excerpt:
The RN consists of one regular circulator and N three-port bypassable circulators [8] each of which connects to an ONU via one short section of feeder fiber. [...] [8] Agiltron, Inc., http://www.Agiltron.com/crystalatch_series F.htm...