Haiying Julie Zhu

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Motivation Different levels of service Heterogeneous mix of video, voice and data Soft vs. Hard real-time communication Soft: lost messages and less stringent requirements Utilization vs. time-predictability tradeoff Exact source properties are unknown Out-of-profile violations QoS Relevant QoS properties Packet delay Bandwidth Violation probability (packet(More)
Future generation wireless packet networks will support multimedia applications with diverse quality-of-service (QoS) requirements. Much of the research on scheduling algorithms has been focused on hard QoS provisioning of integrated services. Although these algorithms give hard delay bounds, their stringent requirements sacrifice the potential statistical(More)
This paper discusses the delay characteristics and packet drop ratio performance of Busy Tone Multiple Access Protocol (BTMAP) for distances up to 48Km in IEEE 802.11 networks. The impact of the Contention Window (CW) is discussed. We note that a larger CW will increase the mean packet delay but decrease the packet drop ratio. Long range also significantly(More)
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