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The convergence of two popular access technologies, namely WiMAX and Passive Optical Network (PON) is a promising access solution that combines the mobility feature of WiMAX and the ample bandwidth of PONs. In such a converged optical-wireless access network, the provision of Quality of Service (QoS) support is a challenging issue, mainly due to the di erent bandwidth allocation mechanisms of the two access technologies. Since the considered convergence seems to be dominant, it deserves assiduous analysis and evaluation. In this paper, we investigate the delay performance of a converged optical-wireless networkthat provides QoS support by considering multiple service-classes withdi erent priorities. In the wireless domain, the IEEE 802.16 standard is applied, while in the optical domain a Wavelength Division Multiplexing Ethernet PON (WDM-EPON) provides connectivity to both wired and wireless users. We present an analytical framework for the calculation of the average end-to-endpacket delay of each service-class, by developing two queuing models for each domain of the converged network. The end-to-end delay is calculated as the sum of the queuing delay in both domains, and the transmission and propagation delay in the optical domain. The accuracy of the proposed analysis has been verified by simulation and found to be quite satisfactory

Delay Analysis of Converged Optical- Wireless Networks with QoS Support