QoS management in heterogeneous home networks

Authors:
Jiann-Liang Chen;Ming-Chiao Chen;Yi-Ru Chian
Affiliations:
Department of Computer Science and Information Engineering, National Dong Hwa University, 1, Sec. 2, Da-Hsueh Road, Hualien 97401, Taiwan, ROC;Department of Computer Science and Information Engineering, National Dong Hwa University, 1, Sec. 2, Da-Hsueh Road, Hualien 97401, Taiwan, ROC;Department of Computer Science and Information Engineering, National Dong Hwa University, 1, Sec. 2, Da-Hsueh Road, Hualien 97401, Taiwan, ROC
Venue:
Computer Networks: The International Journal of Computer and Telecommunications Networking
Year:
2007

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Abstract

An OSGi (Open Services Gateway Initiative) home gateway system manages the integration of heterogeneous home networks protocols and devices to develop ubiquitous applications. Wired and wireless heterogeneous home networks have different QoS concerns. For instance, jitter and latency are important concerns in web phones, while packet loss ratio is important in on-line video. This study adopts UPnP QoS specification version 1.0 to design an adaptive QoS management mechanism based on the RMD (Resource Management in DiffServ) architecture. This study monitors real-time network traffic, and adaptively controls the bandwidth, to satisfy the minimum but most important quality for each application in home network congestion. Simulation results indicate that the average jitter, latency and packet loss are reduced by 0.1391ms, 0.0066s, and 5.43%, respectively. The packet loss ratio is reduced by 4.53%, and the throughput is increased by 1.2% in high definition video stream; the packet loss ratio is reduced by 1.89% for standard definition video stream, and in VoIP (Voice over IP) the jitter and latency are reduced to 0.0407ms and 0.0209s, respectively.