Title :
A QoS-aware residential gateway with bandwidth management
Author :
Hwang, Wen-Shyang ; Tseng, Pei-Chen
Author_Institution :
Nat. Kaohsiung Univ. of Appl. Sci., Taiwan
Abstract :
The residential gateway (RG) is the core device of the digital home network. The RG translates communication protocols, coordinates information sharing and serves as a gateway to external networks for integrated multimedia entertainment, on-line services, home security, home automation, information exchange and data storage. Modern home network applications especially for real-time are demanding guaranteed quality of service (QoS) for bounded network bandwidth resources. In order to initiate a DiffServ-QoS (differentiated services-QoS) bandwidth management mechanism during network congestion, this paper proposes a QRG (QoS-aware residential gateway) with both real-time traffic monitoring, DiffServ-QoS and CBQ bandwidth management. Firstly, QRG classifies traffic flow into separate types, with specialized treatment per traffic type to optimize compliance with user-specified priorities. Applications with higher priority get the right to deliver first. Additionally, QRG with built-in traffic control function adopts class based queuing (CBQ) as DiffServ-QoS bandwidth/traffic management for optimized use of bounded network resources. QRG is experimentally implemented on a Linux platform. High-end application is simulated by hosting QRG in a general-purpose PC, while minimum-cost modular application is simulated by hosting QRG in a light-weight low-power ARM920T embedded system. Results show that in both implementations, QRG successfully performs DiffServ-QoS and CBQ bandwidth management functions so that good quality of service and video performance are maintained during network congestion.
Keywords :
computer network management; home automation; home computing; internetworking; protocols; quality of service; queueing theory; telecommunication security; telecommunication traffic; Linux platform; QoS-aware residential gateway; bandwidth management; bandwidth management mechanism; class based queuing; communication protocols; data storage; digital home network; home automation; home security; information exchange; information sharing; integrated multimedia entertainment; network congestion; online services; quality of service; real-time traffic monitoring; Bandwidth; Communication system traffic control; Data security; Home automation; Multimedia systems; Online services; Protocols; Quality of service; Roentgenium; Traffic control;
Journal_Title :
Consumer Electronics, IEEE Transactions on
DOI :
10.1109/TCE.2005.1510493