Orthogonal frequency division multiplexing (OFDM) is a special case of multi-carrier
transmission and it can accommodate high data rate requirement of multimedia based …

In this paper, we investigate several efficient interpolation techniques for pilot symbol
assisted channel estimation in OFDM. The interpolation methods studied include two …

Wireless network security based on encryption is widely prevalent at this time. However,
encryption techniques do not take into account wireless network characteristics such as …

Channel state information (CSI) at the transmitter in multiple-input multiple-output (MIMO)
downlink systems is indispensable to beamforming or precoding to take advantage of MIMO …

In this paper, we analyze the effects of phase noise to multiple-input multiple-output (MIMO)
orthogonal frequency division multiplexing (OFDM) systems over doubly selective Rayleigh …

OFDM 系统基于自适应定阶的MMSE 信道估计A MMSE Channel Estimator Based on Adaptive
Order Determination in OFDM Sys Page 1 第29 卷第1 期 电子与信息学报 Vol.29No.1 2007 年1 …

This paper proposes a channel estimation algorithm using super-imposed pilots for OFDM
systems. The pilot symbols are added linearly to the modulated data symbol at a fraction of …

In many situations, multiple-input-multiple-output with orthogonal frequency division
multiplexing (MIMO-OFDM) channels tend to be spatially correlated due, for example, to …

The channel estimation techniques for pilot-based OFDM systems are investigated. The
channel estimation is studied for different pilot densities (2, 4, 6, and 10) in frequency …

Fourth generation (4G) wireless products are expected to be based on worldwide
interoperability for microwave access (WiMAX) systems. It is the optimized receiver …