A Comparison of Binary Phase Shift Keying and On-Off Keying Modulation in High Data Rate Indoor Wireless Data Transmission at X-Band

Author(s):  
Zeynep Ayan ◽  
Ziaoulrahman Sediqi ◽  
Abdulrahim Evli ◽  
Murat Can Karakoc ◽  
Asaf Behzat Sahin ◽  
...  
2000 ◽  
Author(s):  
C. Boulanger ◽  
L. Lapierre ◽  
F. Gizard ◽  
C. Zanchi ◽  
G. Lesthievent

Author(s):  
Saib Thiab Alwan

In this paper, carrier’s generation-based graphene with applicability for wavelength division multiplexing (WDM) systems have been produced via an illumination of graphene by 980 nm. This technique allowed for servicing of a greater number of channels in a WDM system, and the carriers were able to travel in an optical channel with high data rate. Eight carriers, having a frequency spacing (FS) of 25 GHz and full-width at half-maximum (FWHM) of 500 MHz, were created. These generated carriers were separately modulated with eight optical quadrature phase shift keying (QPSK) signals and subsequently optically multiplexed and transmitted to an optical fiber channel. At the receiver side, the received signal was demultiplexed, and the performance of the system was analyzed via calculating the error vector magnitude and constellation diagram of the entire system. Opti System version 17.1 and Matlab software are used for demonstration of WDM system and carrier generation.


Author(s):  
А.А. Невзоров ◽  
А.А. Орлов ◽  
Д.А. Станкевич

Article is devoted to new method for optimizing the data transmission channel, based on neural network simulator of a nonstationary physical medium. The proposed method allows reducing the probability of reception error to corresponding level of binary phase shift keying with a small signal-to-noise ratio.


2014 ◽  
Vol 2014 ◽  
pp. 1-10 ◽  
Author(s):  
Rashid A. Fayadh ◽  
F. Malek ◽  
Hilal A. Fadhil

When receiving high data rate in ultra-wideband (UWB) technology, many users have experienced multiple-user interference and intersymbol interference in the multipath reception technique. Structures have been proposed for implementing rake receivers to enhance their capabilities by reducing the bit error probability (Pe), thereby providing better performances by indoor and outdoor multipath receivers. As a result, several rake structures have been proposed in the past to reduce the number of resolvable paths that must be estimated and combined. To achieve this aim, we suggest two maximal ratio combiners based on the pulse sign separation technique, such as the pulse sign separation selective combiner (PSS-SC) and the pulse sign separation partial combiner (PSS-PC) to reduce complexity with fewer fingers and to improve the system performance. In the combiners, a comparator was added to compare the positive quantity of positive pulses and negative quantities of negative pulses to decide whether the transmitted bit was 1 or 0. ThePewas driven by simulation for multipath environments for impulse radio time-hopping binary phase shift keying (TH-BPSK) modulation, and the results were compared with those of conventional selective combiners (C-SCs) and conventional partial combiners (C-PCs).


2011 ◽  
Vol 20 (08) ◽  
pp. 1637-1658 ◽  
Author(s):  
CHIA-CHUN TSAI ◽  
SHENG-BIN DAI ◽  
TRONG-YEN LEE

In this paper, we design and implement an integrated circuit system for contactless interface transmission to conform the transfer protocol of ISO/IEC 14443-2 Type B. The system consists of two major parts, interrogator and transponder, for magnetic power and data transmission. The power and data can synchronously be transferred from the interrogator to the transponder with 10% amplitude shift keying modulation of mixing both carrier 13.56 MHz and data rate 106 Kbps. Another data can be backward to the interrogator from the transponder with the mixed binary phase shift keying modulation. Simulation results to the whole chip based on TSMC 0.35 μm CMOS process have approved using HSPICE.


Sensors ◽  
2021 ◽  
Vol 21 (23) ◽  
pp. 7825
Author(s):  
Jerzy Mizeraczyk ◽  
Ryszard Studanski ◽  
Andrzej Zak ◽  
Agnieszka Czapiewska

Wireless data transmission in the hydroacoustic channel under non-line-of-sight (NLOS) propagation conditions, for example, during a wreck penetration, is difficult to implement reliably. This is mostly due to the multipath propagation, which causes a reduction in the quality of data reception. Therefore, in this work an attempt has been made to develop a reliable method of wireless underwater communication test it under the NLOS conditions. In our method, we used multiple frequency-shift keying (MFSK) modulation, sending a single bit on two carriers, and diversity combining. The method was tested in laboratory conditions which simulated underwater signal propagation during the penetration of the wreck. The propagation conditions were investigated by determining the impulse responses at selected measurement points using the correlation method. Additionally, for comparison, the data transmission quality was determined by the bit error rate (BER) under the same conditions using direct sequence spread spectrum (DSSS) and binary phase shift keying (BPSK) modulation. The obtained results confirmed the usefulness of the application of the developed method for wireless data transmission in a hydroacoustic channel under NLOS conditions.


The digital modulation methods are being chosen in high data rate systems as Long Term Evolution (LTE) and LTE-A. Quadrature Phase Shift Keying (QPSK) and Binary Phase Shift Keying (BPSK) is the simplest form of the PSK with double carrying capacity when compare to the other traditional techniques in modulation. In conventional method the performance was analyzed in MIMO .In this paper proposed the performance analysis of BPSK and QPSK modulator and demodulator in LTE 4G system models under the Additive white Gaussian Noise (AWGN) and Rayleigh fading by comparing the Bit Error Rate (BER). From the analysis, compare to BPSK QPSK has good BER. Using the MATLAB Simulink tool Implementation is performed.


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