移动WiMAX下行链路OFDM信道估计技术
hannel Estimation Schemes of Mobile WiMAX Downlink OFDM Systems
介绍了802.16e 下行系统OFDM的信道估计技术，包括LS（最小平方）、LMMSE(线性最小均方误差)，以及它们的基本原理和主要算法。在802.16e系统下行链路的仿真平台上用LS和LMMSE分别对信道进行估计。仿真结果表明，对瑞利衰落信道，在相同的传输速率下，LMMSE的信道估计比LS信道估计有一定的性能提高。
he paper presents the channel estimation schemes of IEEE 802.16e downlink systems, including LS (Least Square), LMMSE (Linear Minimum Mean-Square error) and their basic theories and the major algorithms. The channel estimation are performed by using LS, LMMSE based on the platform of the 802.16e systems. The simulation results show that the performance of the LMMSE estimation is better than LS based on Rayleigh fading channel for the same transmission rate.
胡绍芹
无线通信通信
WIMAX信道估计正交频分复用LSLMMSE
WIMAXChannel estimationOrthogonal frequency division multiplexingLSLMMSE
胡绍芹.移动WiMAX下行链路OFDM信道估计技术[EB/OL].(2007-06-05)[2025-08-18].http://www.paper.edu.cn/releasepaper/content/200706-91.点此复制
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