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1. (WO2017150826) APPARATUS AND METHOD FOR CONTROLLING BANDWIDTH IN CONSIDERATION OF TRAFFIC CHANGE IN SDN-BASED VIRTUAL WIRELESS NETWORK ENVIRONMENT

Pub. No.:    WO/2017/150826    International Application No.:    PCT/KR2017/001646
Publication Date: Sat Sep 09 01:59:59 CEST 2017 International Filing Date: Thu Feb 16 00:59:59 CET 2017
IPC: H04L 12/911
H04L 12/927
H04L 12/873
H04L 12/851
Applicants: PUSAN NATIONAL UNIVERSITY INDUSTRY-UNIVERSITY COOPERATION FOUNDATION
부산대학교 산학협력단
Inventors: CHUNG, Sanghwa
정상화
MOON, Jaewon
문재원
Title: APPARATUS AND METHOD FOR CONTROLLING BANDWIDTH IN CONSIDERATION OF TRAFFIC CHANGE IN SDN-BASED VIRTUAL WIRELESS NETWORK ENVIRONMENT
Abstract:
The present invention comprises: an OpenFlow module which is included in a host access point daemon (hostapd) of an OpenFlow access point (AP) and allows the OpenFlow AP to collect network traffic and dynamically control a bandwidth; a bandwidth allocation module which is included in the hostapd of the OpenFlow AP and performs a bandwidth control command received from a software defined network (SDN) controller; a packet classification module which is included in media access control (MAC) of the OpenFlow AP and classifies a packet according to virtual slices so as to control a downlink in a virtual network; and a packet scheduling module which is included in the MAC of the OpenFlow AP and controls a downlink bandwidth according to downlink ratio information received from the bandwidth allocation module, on the basis of the classified packet.