Peer-to-Peer File Sharing Architecture for Software-defined TWDM-PON

Abstract

Peer-to-peer (P2P) file sharing application is considered to be a global bandwidth consumer. By localizing the traffic, the internet service provider (ISP) can reduce the bandwidth burden in the feeder fiber, saving time and bandwidth. The passive optical network (PON) is regarded as one of the best future access network technologies that can provide a better environment for P2P applications. In this paper, we propose a P2P intra-traffic file sharing architecture in TWDM-PON with software-defined network (SDN) system to reduce inter- and intra- traffic in PON and ISPs, and improve the quality of service (QoS). In addition, the proposed scheme employs colorless optical network units (ONUs) by dynamically assigning wavelength for transmission to simplify the network operation, reduce installation cost, and enable easier maintenance. Moreover, we implement an integrated SDN with OpenFlow protocol to separate the control plane and data plane, enabling flexible and centralized control of the P2P intra-traffic by the ISP. Simulation results demonstrate that our proposed P2P-DWBA can realize improvements up to 21% in the QoS in terms of packet delay, 23.9% in the jitter, 13% in the throughput, and reduce traffic dropping up to 58% in scenario 6 (5:40:44:11) for the 1.5 ms cycle time.