Preservation of QoS across hybrid LTE-WLAN router


Ghaleb, Abdulaziz M. and Chieng, David and Ting, Alvin Kee Ngoh and Ng, Seh Chung and Abdulkafi, Ayad Atiyah and Lim, Kim Chuan and Lim, Heng Siong (2013) Preservation of QoS across hybrid LTE-WLAN router. In: IET International Conference on Information and Communications Technologies (IETICT 2013), 27-29 April 2013, Beijing, China.

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A Hybrid Wireless Router (HR) is vital to promote seamless internetworking between different wireless networks such as 3G, LTE, WiMAX, WLAN, etc. Typically, a simple bridge such as IEEE802.1D is used to interconnect these networks. However using this approach, the intended QoS requirements for the end users cannot be preserved. A more comprehensive approach is required to preserve QoS across these diverse wireless technologies. In this paper we present a novel design and analysis of the HR. The HR is equipped with LTE and WiFi access radio interfaces that employ very different QoS mechanisms namely the Uplink/Downlink packet scheduling and Enhanced Distributed Coordination Function (EDCF) respectively. Various approaches on preserving the QoS across the hybrid router for VoIP and video applications are investigated. The results show that the scheme which adopts layer 3 Priority Queue (PQ) with WLAN MAC Block ACK function disabled offers the best performance in terms of Voice application MOS and video application’s data delivery rate, packet end-to-end delay, loss rate and jitter.

Item Type: Conference or Workshop Item (Paper)
Subjects: Q Science > Q Science (General)
Divisions: Faculty of Engineering and Technology (FET)
Depositing User: Ms Rosnani Abd Wahab
Date Deposited: 23 Dec 2013 02:31
Last Modified: 29 Dec 2020 16:43


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