Voice over IP performance monitoring
ACM SIGCOMM Computer Communication Review
Broadband wireless access with WiMax/802.16: current performance benchmarks and future potential
IEEE Communications Magazine
VoIP over cdma2000 1xEV-DO revision A
IEEE Communications Magazine
An analysis of VoIP service using 1×EV-DO revision a system
IEEE Journal on Selected Areas in Communications
Multichannel random access in OFDMA wireless networks
IEEE Journal on Selected Areas in Communications
Efficient uplink scheduling policy for variable bit rate traffic in IEEE 802.16 BWA systems
International Journal of Communication Systems
International Journal of Communication Systems
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While the voice over Internet protocol (VoIP) services is expected to be widely supported in wireless mobile networks, the performance of VoIP services has not previously been evaluated in the IEEE 802.16e orthogonal frequency division multiple access (OFDMA) system taking the adaptive modulation and coding scheme into consideration. To support real-time uplink service flows, three different types of scheduling have been designed in the IEEE 802.16e standard: the unsolicited grant service (UGS), the real-time polling service (rtPS), and the extended rtPS (ertPS). In this paper, we compare the three real-time scheduling algorithms in terms of the performance of VoIP services by using the analytical and simulation models that we developed.