An approach to calculating the bit-error rate of a coherent chaos-shift-keying digital communication system under a noisy multiuser environment

2002 ◽  
Vol 49 (2) ◽  
pp. 210-223 ◽  
Author(s):  
W.M. Tam ◽  
F.C.M. Lau ◽  
C.K. Tse ◽  
M.M. Yip
Keyword(s):  
Bit Error Rate ◽  
Error Rate ◽  
Communication System ◽  
Digital Communication ◽  
Shift Keying ◽  
Digital Communication System ◽  
Chaos Shift Keying

Bit-Error-Rate Evaluation of High-Efficiency Differential-Chaos-Shift-Keying System Over Wireless Channels

2017 ◽  
Vol 27 (01) ◽  
pp. 1850008 ◽  
Author(s):  
Nguyen Xuan Quyen
Keyword(s):  
Bit Error Rate ◽  
Error Rate ◽  
Wireless Channels ◽  
High Efficiency ◽  
Wireless Channel ◽  
Delay Spread ◽  
Shift Keying ◽  
Chaos Shift Keying ◽  
Differential Chaos Shift Keying ◽  
Ber Performance

A high-efficiency differential-chaos-shift-keying (HE-DCSK) system has been proposed previously for the improvement of both bit-rate and bit-error-rate (BER) performance in comparison with the conventional DCSK system. This improvement made HE-DCSK be a promising solution for chaos-based communications. However, the performance of this system was just investigated under an additive white Gaussian noise (AWGN) channel. This is main motivation for our work to evaluate the performance of HE-DCSK over a typical wireless channel which is simultaneously affected by white noise, fading, multipath, and delay spread. The operation of the transmitter and receiver over the wireless channel is modeled and described. The BER performance is evaluated by theoretical analysis using Gaussian approximation and discrete integration. The numerical results obtained by Monte Carlo simulations are presented to verify the analyzed performance. Obtained results point out that the HE-DCSK system not only performs better than other DCSK-based ones under wireless channels but also can exploit the multipath characteristic to improve the performance.

Design of Digital Communication System of XCTD Based on FSK

2014 ◽  
Vol 644-650 ◽  
pp. 3972-3975
Author(s):  
Jian Rui Zhao ◽  
Ning Liu ◽  
Yu Hua Wu
Keyword(s):  
Communication System ◽  
Digital Communication ◽  
Signal Transmission ◽  
Digital Signal ◽  
Single Chip ◽  
Modulation And Demodulation ◽  
Waveform Distortion ◽  
Shift Keying ◽  
Digital Communication System ◽  
Temperature Depth

According to the problem of expendable conductivity temperature depth profile (XCTD) of transmission signal waveform distortion and undistinguishable information caused by cable time-varying parameters and influence of seawater. This paper designed a based on FSK (Frequency shift keying) of digital communication system. It used single-chip modem chip FX604 used in FSK modulation and demodulation of the signal. And it implements the digital signal transmission on thin wire communication on the water. The system overcomes unfavorable conditions about transmission channel and marine environment. The circuit is easy and practical.

scholarly journals Performance Evaluation of MRMED Algorithm by Monitoring BER

2021 ◽  
Vol 10 (02) ◽  
Author(s):  
SYED RIZWAN-UL-HASAN ◽  
Muhammad Tahir ◽  
SHAKIL AHMED
Keyword(s):  
Bit Error Rate ◽  
Error Rate ◽  
Communication System ◽  
Research Work ◽  
Average Power ◽  
Measurement Tool ◽  
Communication Structure ◽  
Shift Keying ◽  
Code Division Multiple ◽  
Sequence Simulation

In this research work, we have developed a communication system (transmitter / receiver) to control peak to average power (PAPR) with  small bit error rate (BER) for a 4G system called multicode code division multiple access (MCCDMA). Proposed communication system works on modified Reed Muller encoded data (MRMED) string. In MRMED data is first encoded with Reed Muller (RM) code. Thereafter, encoded RM message is XORed with optimal binary string, which results lower Peak to Average Power ratio (PAPR).  A well-known fact is that, bit error rate (BER) is the best performance measurement tool for a communication system. To check the integrity of our communication system, we have run the simulation for monitoring BER using MRMED sequence. Simulation work conducted, with multipath Rayleigh fading, Minimum Shift Keying (MSK) modulation and several orders of RM codes. Our results show that implementing MRMED sequences of the suggested MCCDMA communication structure, returns noticeable lower BER. For instance, in case of RM(1,4), that has error improvement proficiency of 3 (three) errors , returns BER = 8.2x10−5 adopting MSK, at SNR = 12dB. Similarly, for RM(2,3), which has error improvement efficiency of 0  error and shows distinct BER of 4.9x10−4 at  12dB (SNR).In addition to using simulation for checking BER performance of our communication system, we have also shown in our results that, as the error improvement capability of different RM codes surges, correspondingly we get a lower BER.

Study on the Performance of DBPSK Communication System

2013 ◽  
Vol 427-429 ◽  
pp. 1241-1245
Author(s):  
Hong Gang He ◽  
Hai Yang Fu
Keyword(s):  
Probability Theory ◽  
Phase Shift ◽  
Bit Error Rate ◽  
Error Rate ◽  
Communication System ◽  
Simulation Method ◽  
Phase Shift Keying ◽  
Shift Keying ◽  
Binary Phase Shift Keying ◽  
Ber Performance

Focused on the communication system of differentially encoded binary phase-shift keying (DBPSK/2DPSK), this paper studies on the influences of inter symbol interferences (ISI) on the bit error rate (BER) performance and derives the BER expression that is applicable for arbitrary sending probabilities of binary symbols using the knowledge of integration and probability theory, which is then demonstrated to be correct by the Monte Caro simulation method.

A Multiaddress Co-Chaos Shift Keying Communication Scheme and Performance Analysis

2014 ◽  
Vol 24 (04) ◽  
pp. 1450050
Author(s):  
Zhiliang Zhu ◽  
Jingping Song ◽  
Yanjie Song ◽  
Hai Yu
Keyword(s):  
Bit Error Rate ◽  
Error Rate ◽  
Gaussian White Noise ◽  
Transmission Efficiency ◽  
Theory Analysis ◽  
Shift Keying ◽  
Communication Scheme ◽  
Simulation Results ◽  
And Performance ◽  
Chaos Shift Keying

A new multiaddress Co-Chaos Shift keying communication scheme (MA-CoCSK) was proposed based on analyzing the permutation-based differential chaos-shift-keying (PMA-DCSK) scheme and the Antipodal Chaos-Shift-Keying (ACSK) scheme. We also analyzed the bit error rate of the new scheme in Gaussian white noise channel and compared its performance with that of the PMA-DCSK scheme. Theory analysis and simulation results both indicate that the scheme proposed in this paper can not only improve the transmission efficiency of a communication system, but also decrease the bit error rate significantly while increasing the speed compared to PMA-DCSK.

MULTI FREQUENCY SYNTHEZIER OF BISPECTRAL TRIPLET- SIGNAL DESIGNED FOR DIGITAL COMMUNICATION SYSTEM

2017 ◽  
Vol 76 (2) ◽  
pp. 147-155 ◽  
Author(s):  
V. V. Naumenko ◽  
A. V. Totsky ◽  
S. K. Pidchenko ◽  
J. T. Astola ◽  
O. A. Polotska
Keyword(s):  
Communication System ◽  
Digital Communication ◽  
Triplet Signal ◽  
Digital Communication System

BlueFlood

2021 ◽  
Vol 2 (4) ◽  
pp. 1-30
Author(s):  
Beshr Al Nahas ◽  
Antonio Escobar-Molero ◽  
Jirka Klaue ◽  
Simon Duquennoy ◽  
Olaf Landsiedel
Keyword(s):  
Experimental Study ◽  
Bit Error Rate ◽  
Error Rate ◽  
Data Dissemination ◽  
Delivery Ratio ◽  
Controlled Experiments ◽  
Seamless Integration ◽  
Peer Communication ◽  
Shift Keying ◽  
University Buildings

Bluetooth is an omnipresent technology, available on billions of devices today. While it has been traditionally limited to peer-to-peer communication and star networks, the recent Bluetooth Mesh standard extends it to multi-hop networking. In addition, the Bluetooth 5 standard introduces new modes to allow for increased reliability. In this article, we evaluate the feasibility of concurrent transmissions (CT) in Bluetooth via modeling and controlled experiments and then devise an efficient network-wide data dissemination protocol, BlueFlood, based on CT for multi-hop Bluetooth networks. First, we model and analyze how CT distorts the received waveform and characterize the Bit Error Rate of a Frequency-Shift Keying receiver to show that CT is feasible over Bluetooth. Second, we verify our analytic results with a controlled experimental study of CT over Bluetooth PHY. Third, we present BlueFlood, a fast and efficient network-wide data dissemination in multi-hop Bluetooth networks. In our experimental evaluation, in two testbeds deployed in university buildings, we show that BlueFlood achieves 99.9% end-to-end delivery ratio with a duty-cycle of 0.4% for periodic dissemination of advertising packets of 38 bytes with 200 milliseconds intervals at 2 Mbps. Moreover, we show that BlueFlood can be received by off-the-shelf devices such as smartphones, paving a seamless integration with existing technologies.

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