Dynamic Bandwidth Allocation Energy Efficient Operation for WDM/TDM PON Architectures: A Survey

During the past decades, technology has been revolutionized the world in various fields, including networking and communications. With the continuous increase in the number of users (subscribers) of communication technology and development of communication services, led to increase the need for a larger bandwidth in order to send/receive more data with higher speed. Therefore, it was necessary to make a change in the field of networks and communications also and continuously to meet end-users demands and taking the cost in to account. Moreover, energy-efficient networking it’s a significant point and should be improved. Providing an efficient usage of PON upstream bandwidth by DBA in PONs presents a main issue during supporting the QoS requirements of various traffic classes. This study will review and investigate the Dynamic Bandwidth Allocation (DBA) energys efficient operation approach for WDM/TDM PON network architectures with a brief discussion of its related technologies and techniques as well as technical characteristics and its deployment in order to increase the efficiency of the access network