IEEE802．11n是无线局域网技术的最新标准，介绍了基于802．11n的MIMO（多入多出）、OFDM（正交频分复用）和双频带等无线通信系统的关键技术，分析了在802．11n标准下WLAN的安全问题，通过数据加密、双向认证、动态WEP密钥和虚拟专用网络等方法，提出了基于802．11n的WLAN安全解决方案。 -IEEE802.11n is the latest wireless LAN technology standard introduced based on 802.11n, MIMO

MIMO-OFDM系统中一种改进的递归最小二乘(RLS)信道估计方法可以在不需要任何信道统计信息的前提下，利用前导训练序列和自适应遗忘因子对信道状态参数进行估计。-The modified recursion lest squares (RLS) channel estimation method exploits preamble training sequences and adaptive forgetting factor to estimate channel state par

the effects of neural network aided estimation in such receivers are considered. Neural network acts as a pre-processing block to the estimator.-Orthogonal frequency division multiplexing (OFDM) has high data rate capacity and lower Inter Symbo

method based on Neural Network (NN) technique and accompanied with MMSE (Minimum Mean Square Error), which corrects at the receiver level, the Non-Linear (NL) distortions due to the HPA (High Power Amplifier).-In this paper, we present a meth