Title :
A new multi-thread polling based dynamic bandwidth allocation in Long-Reach PON
Author_Institution :
Sch. of Electron. & Comput. Eng., Chonnam Nat. Univ., Gwangju, South Korea
Abstract :
Long-Reach PON (LR-PON) is a broadband access network using passive optical network (PON) technology which the reach is extended to 100 km or higher. A major challenge in LR-PON is that the propagation delay between OLT and ONUs is increased by a very significant amount. To effectively and fairly distribute the upstream bandwidth dynamically in LR-PON, we propose a new multi-thread polling based dynamic bandwidth allocation (DBA) algorithm. We compare the proposed algorithm with traditional DBAs, and show its advantage on average packet delay. Numerical results are analyzed under varying offered loads.
Keywords :
bandwidth allocation; broadband networks; multi-threading; passive optical networks; LR-PON; OLT; ONU; average packet delay; broadband access network; long-reach PON; multithread polling based DBA algorithm; multithread polling based dynamic bandwidth allocation algorithm; passive optical network technology; propagation delay; upstream bandwidth; Bandwidth; Channel allocation; Delays; Dynamic scheduling; Heuristic algorithms; Optical network units; Passive optical networks; Broadband access network; dynamic bandwidth allocation; long-reach PON (LRPON); multh-thread polling;
Conference_Titel :
Optical Internet 2014 (COIN), 2014 12th International Conference on
Conference_Location :
Jeju
DOI :
10.1109/COIN.2014.6950621
