Dual-stage detection scheme for Ultra-Wideband detect and avoid (ソフトウェア無線)

概要

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This report discusses a dual-stage detection scheme composed of a coarse detection stage and a refined detection stage for the continuous detection operation of Ultra-Wideband (UWB) detect and avoid (DAA). Our proposed scheme focuses on the integration of two different detection schemes with different complexities in order to reduce the total computational complexity. The Single-carrier Frequency Division Multiple Access (SC-FDMA) uplink system of Long Term Evolution-Advanced (LTE-Advanced) is supposed to be the victim system. The threshold factor and the probability of uncertainty are first proposed and defined to combine such two stages. The relation between the threshold factor and the probability of uncertainty is shown by theoretical analysis and computer simulations. A tradeoff between the detection performance and the computational complexity can be achieved by setting the probability of uncertainty. Simulation results indicate that the dual-stage detection scheme can achieve the target detection performance by setting the probability of uncertainty.
社団法人電子情報通信学会の論文
2010-05-13