Enhanced dynamic bandwidth allocation in WDM-PON

Xin Ye; Ajaz Sana; Chadi M. Assi; Mohamed A. Ali

doi:10.1117/12.753476

10 September 2007 Enhanced dynamic bandwidth allocation in WDM-PON

Xin Ye, Ajaz Sana, Chadi M. Assi, Mohamed A. Ali

Proceedings Volume 6776, Broadband Access Communication Technologies II; 67760H (2007) https://doi.org/10.1117/12.753476
Event: Optics East, 2007, Boston, MA, United States

Abstract

WDM based passive optical network (PON) upgrades current TDM based PON at the architecture, protocol and dynamic bandwidth allocation algorithms to provide higher bandwidth in the access networks. Various Dynamic Wavelength and Bandwidth Allocation algorithms for WDM-PON have been studied. These DWBA algorithms exploit both inter-channel and intra-channel statistical multiplexing in order to achieve better performance, especially when the load on various channels is not symmetric. However, these algorithms let all ONUs share all wavelengths equally, and decouple bandwidth allocation from the wavelength assignment, which may cause bandwidth fragmentation across different wavelengths, and these algorithms further strictly limit the ONUs only to use one wavelength per allocation cycle, hence, leading to the underutilized network performance. To overcome the above limitation, we propose an enhanced dynamic wavelength and bandwidth allocation (EDBA) algorithm, which integrates wavelength assignment with bandwidth allocation process. We use extensive simulation to compare the performance of EDBA to another DWBA algorithm in³.

Citation Download Citation

Xin Ye, Ajaz Sana, Chadi M. Assi, and Mohamed A. Ali "Enhanced dynamic bandwidth allocation in WDM-PON", Proc. SPIE 6776, Broadband Access Communication Technologies II, 67760H (10 September 2007); https://doi.org/10.1117/12.753476

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available