关键词: 无线网络, 等效带宽, 多普勒频移, 延迟

Abstract: Wireless multi-hop networks have a wide range of application forecast. It is crucial to develop feasible methodologies and techniques for accurately analyzing, predicting and guaranteeing end-to-end delay performance over multi-hop wireless communication paths. Through extending the link-layer equivalent bandwidth model, a lower bound of delay-bound violation probability was derived. Analytical results were verified by extensive computer simulations under different traffic load and wireless channel conditions. Multi-hop delay performance is proved to be much more sensitive to maximum Doppler rate than channel service rate.

Key words: wireless network, equivalent bandwidth, Doppler rate, delay