With the increasing demands of data communication speed for different type of data transmission, many revolutions occur with time in wireless communication system. The use of MIMO for wireless data transmission has proven itself for enhancing the capacity of data transmission. The mobile network based on the cell structure also uses the MIMO techniques. Further research in the field of massive ...

To respond to the changing needs of the industry for non-traditional electrical measurements many national laboratories including the National Research Council of Canada (NRC), the National Institute of Standards and Technology (NIST), the Physikalisch Technische Bundesanstalt (PTB), the National Physical Laboratory (NPL), and the Swedish National Testing and Research Institute (SP) have develo...

Existing works design the pilot pattern for sparse channel 6 estimation, assuming that the power of all pilots is equal. However, equal 7 power allocation is not optimal in cognitive radio (CR) systems. In this cor8 respondence, we jointly design the pilot power and pilot pattern for sparse 9 channel estimation in orthogonal-frequency-division-multiplexing-based 10 CR systems, based on the rule...

The pilot spoofing attack is considered as an active eavesdropping activity launched by an adversary during the reverse channel training phase. By transmitting the same pilot signal as the legitimate user, the pilot spoofing attack is able to degrade the quality of legitimate transmission and, more severely, facilitate eavesdropping. In an effort to detect the pilot spoofing attack and minimize...

This paper discusses the design and implementation of a series of system-wide simulation upgrades made to the Vehicle Systems and Control Laboratory in the Aerospace Engineering Department at Texas A&M University. The simulation system consists of a PCbased distributed simulation network comprised of a fixed-base full cockpit simulator and three additional pilot-based simulation stations. Modif...

The simulation and steady state operation of a vapor recompression pilot plant distillation column is studied in order to improve the thermal efficiency. A binary system of ethanol-water mixture is used. The simulation is carried through ASPEN PLUS version 9.3-1. Energy reduction of 89.26% is obtained comparing to the conventional distillation and the thermodynamic efficiency is improved from 1...

In this paper, we investigate pilot-symbol-aided parameter estimation for orthogonal frequency division multiplexing (OFDM) systems. We first derive a minimum mean-square error (MMSE) pilot-symbol-aided parameter estimator. Then, we discuss a robust implementation of the pilot-symbol-aided estimator that is insensitive to channel statistics. From the simulation results, the required signal-to-n...

A method is proposed to implement coherent detect ion of turbo coded binary phase shift keying (BPSK) signals transmitted over frequency-fiat Rayleigh fading channels. After turbo encoding, a subset of the parity symbols is punctured and replaced with known pilot symbols. Because the pilot symbols replace existing pamity symbols, no bandwidth expansion is required. However, there is a restricti...

The realization of general aviation Free Flight requires advanced cockpit systems to assist pilots in managing information and decision-making. In this paper, the application of cognitive engineering concepts to cockpit system design for general aviation is discussed. The design of an Aircraft Approach and Landing Assistant is presented as an example of this method. Its purpose is to enhance pi...

In the next generation mobile communication systems, multiple-input multiple-output (MIMO) multiplexing is an indispensable technique to achieve very high-speed data transmission with a limited bandwidth. In MIMO multiplexing, it is necessary to estimate the channels between transmit and receive antennas for signal detection. In this paper, we propose a minimum mean square error (MMSE) channel ...