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首页> 外文会议>International Conference on Signal Processing, Communication, Power and Embedded System >Mean Square Error Analysis in MIMO-OFDM System using Pilot based Channel Estimation
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Mean Square Error Analysis in MIMO-OFDM System using Pilot based Channel Estimation

机译：使用基于导频的信道估计MIMO-OFDM系统的均方误差分析

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摘要

The last few decades, there has been a incredible growth in the wireless communication technology. In this innovative information period, high data rate and strong reliability features are becoming the dominant factor for a successful exploitation of viable networks. MIMO-OFDM (Multiple Input Multiple Output - Orthogonal Frequency Division Multiplexing), is a new wireless broadband technology has gained great popularity for its capability of high rate transmission and its toughness against multipath fading and other channel impairments. In MIMO, multiple antennas are employed both at the transmitter and the receiver. Various signals are transmitted from different antennas at the transmitter using the same frequency and separated in space. In this paper, we analyze and implement various channel estimation techniques such as Least Squares (LS), Minimum Mean Square Error (MMSE) for MIMO-OFDM System. The MSE (Mean Square Error) performance characteristics of channel are investigated for BPSK, M-ary QAM modulation schemes over the AWGN and Rayleigh fading channel.
机译：过去几十年来，无线通信技术存在令人难以置信的增长。在这种创新信息期间，高数据速率和强大可靠性特征正在成为成功开发可行网络的主导因素。 MIMO-OFDM（多输入多输出 - 正交频分复用）是一种新的无线宽带技术，其高速传输能力具有很大的普及及其对多路径衰落和其他渠道损伤的韧性。在MIMO中，在发射器和接收器处使用多个天线。各种信号通过使用相同的频率在发射器处从不同的天线发送并在空间中分开。在本文中，我们分析和实施用于MIMO-OFDM系统的最小二乘（LS），最小平均误差（MMSE）的各种信道估计技术。在AWGN和Rayleigh衰落通道上研究了BPSK，M-ARY QAM调制方案的通道的MSE（均方误差）性能特性。

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