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Multipath resolving with frequency dependence for wide-band wireless channel modeling

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2 Author(s)
Qiu, R.C. ; Lucent Technol., Bellcore, Mt. Olive, NJ, USA ; I-Tai Lu

Multiple ray paths are resolved using high-resolution digital signal processing algorithms. The Cramer-Rao (CR) bound is used as a benchmark where a combination of the singular value decomposition method and the eigen-matrix pencil method is proven to be most successful. The conventional complex channel model for wireless propagation is extended to include the frequency-dependent feature of rays which can be used to classify the ray arrivals and provide physical insight of the channel. A novel complex-time model is used to approximate the suggested model. This approach is important to various applications such as equalizers, RAKE receivers, etc., in wireless communication systems. Five key features (noise immunity, robustness, resolution, accuracy, and physical insight) of the proposed algorithm are studied using numerical examples

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Vehicular Technology, IEEE Transactions on  (Volume:48 ,  Issue: 1 )