Practical Non-Uniform Channelization for Multistandard Base Stations  

作　　者：lvaro Palomo Navarro Rudi Villing Ronan J. Farrell 

机构地区：[1]Callan Institute, Electronic Engineering Department, National University of Ireland, Maynooth (NUIM), Ireland

出　　处：《ZTE Communications》2011年第4期15-24,共10页中兴通讯技术（英文版）

摘　　要：A multistandard software-defined radio base station must perform non-uniform channelization of multiplexed frequency bands. Non-uniform channelization accounts for a significant portion of the digital signal processing workload in the base station receiver and can be difficult to realize in a physical implementation. In non-uniform channelization methods based on generalized DFT filter banks, large prototype filter orders are a significant issue for implementation. In this paper, a multistage filter design is applied to two different non-uniform generalized DFT-based channelizers in order to reduce their filter orders. To evaluate the approach, a TETRA and TEDS base station is used. Experimental results show that the new multistage design reduces both the number of coefficients and operations and leads to a more feasible design and practical physical implementation.A multistandard software-defined radio base station must perform non-uniform channelization of multiplexed frequency bands. Non-uniform channelization accounts for a significant portion of the digital signal processing workload in the base station receiver and can be difficult to realize in a physical implementation. In non-uniform channelization methods based on generalized DFT filter banks, large prototype filter orders are a significant issue for implementation. In this paper, a multistage filter design is applied to two different non-uniform generalized DFT-based channelizers in order to reduce their filter orders. To evaluate the approach, a TETRA and TEDS base station is used. Experimental results show that the new multistage design reduces both the number of coefficients and operations and leads to a more feasible design and practical physical implementation.

关 键 词：SDR NON-UNIFORM CHANNELIZATION base station TETRA 

分 类 号：TN925[电子电信—通信与信息系统] TN713[电子电信—信息与通信工程]