Simple dynamic bandwidth allocation algorithm for loop-back WPON

This paper describes a WDM-PON architecture to provide diverse broadband services. We propose a Loop-Back WDM-PON(LPB-PON) architecture with adaptive frame structure and corresponding framing procedure. Also, we propose a novel simple polling with service level(SPSL) scheme that allows the upstream bandwidth to be shared among many subscribers. We modeled the proposed SPSL scheme using the OPNET simulator and the simulation results show that the proposed scheme is suitable for guaranteed bandwidth services for diverse applications.