Paper Info
Title
Enhanced Shared-Tdd Based Hybrid Wdm/Tdm-Pon With Dynamic Bandwidth Allocation Scheme
Abstract
Although wavelength division multiplexing-passive optical network (WDM-PON) is known as a high-speed transfer, it creates high channel costs per subscriber and low bandwidth utilization due to the fact that a wavelength is dedicated to each subscriber. Thus, it is imperative to reduce channel costs per subscriber and improve the bandwidth utilization. To achieve these, we first adopt a existing WDM-PON, which uses the bidirectional transmission with a single source for cost-efficiency by employing a gain-saturated reflective semiconductor optical amplifier (RSOA). Secondly, based on the existing WDM-PON, we propose an enhanced hybrid WDM/TDM-PON, which can extend the number of subscribers supported in each wavelength with splitters in the physical layer and a shared-time division duplex (TDD) frame format in the media access control (MAC) layer. Moreover, it can adaptively control the bandwidth through a dynamic bandwidth allocation (DBA) scheme according to the volume of traffic. Compared to the non TDD-based hybrid WDM/TDM-PON, it can reduce channel costs per subscriber from the extended number of subscribers supported in each wavelength. Furthermore, due to the DBA, it can improve the total queueing delay and throughput, and thus increase the bandwidth utilization.
Year
DOI
Venue
2009
10.1587/transcom.E92.B.1166
IEICE TRANSACTIONS ON COMMUNICATIONS
Keywords
Field
DocType
hybrid-PON, dynamic bandwidth allocation, TDD
Media access control,Computer science,Bandwidth allocation,Passive optical network,Computer network,Communication channel,Physical layer,Bandwidth (signal processing),Dynamic bandwidth allocation,Throughput
Journal
Volume
Issue
ISSN
E92B
4
0916-8516
Citations 
PageRank 
References 
1
0.38
6
Authors
4
Name
Order
Citations
PageRank
Bokrae Jung1122.46
Min-Gon KIM29112.86
Byong-whi Kim311.06
Minho Kang416122.49