Cross-layer design of DiffServ architecture for end-to-end QoS in IEEE 802.16 multi-hop mesh/relay networks with IEEE 802.11e WLANs

Authors:
Myounghwan Lee;Bongkyung Kwon;John A. Copeland
Affiliations:
Communications Systems Center, Georgia Institute of Technology, Atlanta, GA;Communications Systems Center, Georgia Institute of Technology, Atlanta, GA;Communications Systems Center, Georgia Institute of Technology, Atlanta, GA
Venue:
CCNC'10 Proceedings of the 7th IEEE conference on Consumer communications and networking conference
Year:
2010

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Abstract

Because of the high cost of construction and maintenance of infrastructure-based networks, researchers have concentrated their efforts on studying wireless mesh/relay networks with lower cost and high scalability. Due to the demand for real-time multimedia communication in heterogeneous networks, IEEE 802.16 multi-hop mesh/relay networks with IEEE 802.11e WLANs for QoS support can be an effective multi-hop network model instead of IEEE 802.11-based mesh networks without any QoS mechanism. In addition, to provide end-to-end QoS support for different QoS mechanisms of IEEE 802.11e, IEEE 802.16, and the Internet protocol, differentiated services architecture can be applied. Therefore, we propose a design of cross-layer DiffServ architecture in wireless multi-hop mesh/relay networks with WLANs for end-to-end QoS support. Simulations of the proposed QoS architecture using OPNET Modeler show an excellent end-to-end QoS guarantee in the multi-hop mesh/relay networks.