Algorithms and Architectures for Channel Estimation and Multiuser Detection in CDMA Communication Systems

摘要：NCR-9506681， William Marsh Rice大学，CDMA通信系统中信道估计和多用户检测的算法和体系结构，PI-Behnaam Aazhang和Joseph R. Cavallaro：在下一代蜂窝CDMA网络中使用多用户检测存在三个主要问题：信号和信道参数的估计，多用户估计和检测算法的实时硬件实现，以及系统对网络变化的适应。该项目解决了多用户环境中信道估计和数据检测算法的开发和并发实现。目标是找到计算效率高的算法，这些算法具有近距离抵抗能力，能够跟踪缓慢变化的信道，并且可以扩展到具有天线阵列的系统。该项目的一个组成部分是这些算法的实现。将研究算法到并行架构的映射，特别是使用标准DSP处理器与定制VLSI协处理器相结合。该项目将多用户通信的发展与DSP和VLSI的发展相结合，为CDMA通信中的问题提供实用的解决方案。***************************************************************************** 奥布里·m·BushProgram导演,代理副分工和DirectorDivision网络和通信研究和InfrastructureNational科学基金会

ABSTRACT: NCR-9506681, William Marsh Rice University, Algorithms and Architectures for Channel Estimation and Multiuser Detection in CDMA Communication System, PI-Behnaam Aazhang and Joseph R. Cavallaro: There are three major problems in using multiuser detection for the next generation cellular CDMA networks: estimation of the signal and channel parameters, real-time hardware implementation of multiuser estimation and detection algorithms, and system adaption to changes in the network. This project addresses the development and concurrent implementation of algorithms for channel estimation and data detection in a multiuser environment. The objective is to find computationally efficient algorithms that are near-far resistant, are capable of tracking slowly varying channels, and can be extended to systems with antenna arrays. An integral part of the project is the implementation of these algorithms. The mapping of the algorithms onto parallel architectures, particularly using standard DSP processors in combination with custom VLSI co-processors will be studied. The project combines developments in multiuser communications with developments in DSP and VLSI to provide practical solutions for problems in CDMA communications. ***************************************************************************** Aubrey M. BushProgram Director, Acting Deputy Divison DirectorDivision of Networking and Communications Research and InfrastructureNational Science Foundation