A robust signal-detection method for ultra-wideband networks with uncontrolled interference
作者： A.E. Faw , J.-Y. Le Boudec
关键词: Synchronization 、 Ultra-wideband 、 Engineering 、 Non-line-of-sight propagation 、 Broadcasting 、 Electronic engineering 、 Pulse-position modulation 、 Wireless ad hoc network 、 Multiuser detection 、 Detection theory
摘要: We propose a novel detection method for noncoherent synchronization (signal acquisition) in multi-user ultra-wideband (UWB) impulse radio (IR) networks. It is designed to solve the inter-user interference (IUI) that occurs some ad-hoc networks where concurrent transmissions are allowed with heterogeneous power levels. In such scenarios, conventional method, which based on correlating received IR signal template pulse train (TPT), does not always perform well. The complexity of our proposal similar method. evaluate its performance line-of-sight (LOS) and non-LOS (NLOS) office indoor channel models proposed by IEEE P802.15.4a study group find improvement significant. also investigate particular case have same time-hopping code, we show it result collision. Such scenarios appear employ common code control or broadcast purposes.
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