Packet Error Probability for Diversity Systems in Slow Rayleigh Fading and Gaussian Noise

1986 ◽  
Vol 23 (3) ◽  
pp. 239-244
Author(s):  
Matthew L. Luhanga
Keyword(s):  
Fading Channels ◽  
Gaussian Noise ◽  
Error Probability ◽  
Rayleigh Fading ◽  
Maximal Ratio Combining ◽  
Selection Combining ◽  
Phase Shift Keying ◽  
Differential Phase Shift ◽  
Differential Phase Shift Keying ◽  
Shift Keying

Analytical results on packet error probability for noncoherent frequency-shift-keying (NCFSK) and differential phase-shift-keying (DPSK) systems with diversity reception operating over slow Rayleigh fading channels with Gaussian noise are derived. Expressions obtained are applicable to two linear combining schemes: selection combining and maximal-ratio combining.

scholarly journals Modulation diversity for differential amplitude and phase shift keying technique

2017 ◽  
Vol 7 (1.1) ◽  
pp. 418
Author(s):  
M Kanthimathi ◽  
R Amutha ◽  
S Anusha
Keyword(s):  
Phase Shift ◽  
Fading Channels ◽  
Differential Detection ◽  
Phase Shift Keying ◽  
Differential Phase Shift ◽  
Differential Phase ◽  
Differential Phase Shift Keying ◽  
Shift Keying ◽  
Modulation Diversity ◽  
Energy Consumption Simulation

Modulation diversity can reduce the bit error rate in fading channels. We make use of the advantage of modulation diversity in non-coherent differential modulation technique. Increase in modulation diversity is obtained by rotating signal constellation. Coordinate interleaved Differential amplitude and phase-shift keying modulation (DAPSK) is particularly advantageous compared to the Differential phase-shift keying (DPSK) technique. Energy optimization is done to minimize the energy consumption. Simulation results shows that the proposed differential detection for different rotation angle achieves better BER performance than constant phase differential detection with modulation diversity.The energy required to successfully transmit a bit is also reduced for proposed system compared to Differential phase shift keying based system.

scholarly journals The Slashed-Rayleigh Fading Channel Distribution

2019 ◽  
Vol 2019 ◽  
pp. 1-14 ◽  
Author(s):  
E. Gómez-Déniz ◽  
L. Gómez ◽  
H. W. Gómez
Keyword(s):  
Fading Channel ◽  
Rayleigh Fading ◽  
Phase Shift Keying ◽  
Differential Phase Shift ◽  
Practical Applications ◽  
Differential Phase Shift Keying ◽  
Average Channel Capacity ◽  
Shift Keying ◽  
Gaussian Stochastic Processes ◽  
New Distribution

We propose an alternative distribution for modelling fading-shadowing wireless channels. This distribution presents certain advantages over the Rayleigh-lognormal distribution and the K distribution and has proved useful in the setting described. We obtain closed-form expressions for the average channel capacity and for the average bit error rate of differential phase-shift keying and of minimum shift keying when the new distribution is used. This distribution can be obtained exactly as the sum of mutual independent Gaussian stochastic processes, because it must represent the simulation of the fading channel; that is, it simulates the signal envelope. Finally, we describe practical applications of this distribution, comparing it with the Rayleigh-lognormal and K distributions.

Moment-Generating Function Based Symbol Error Probability Comparison of M-ary Modulation Techniques in Fading Environment

2020 ◽  
Vol 17 (11) ◽  
pp. 5085-5090
Author(s):  
Kapil Gupta ◽  
Rachna Mehta
Keyword(s):  
Phase Shift ◽  
Generating Function ◽  
Error Probability ◽  
Moment Generating Function ◽  
Maximal Ratio Combining ◽  
Phase Shift Keying ◽  
Symbol Error Probability ◽  
Differential Phase Shift ◽  
Receiver Diversity ◽  
Shift Keying

This paper analyses and compare Symbol Error Probability (SEP) of M-ary modulation in different fading environment. Maximal ratio combining (MRC) technique with N branch receiver diversity is taken into consideration for the analysis. Expression for probability of symbol error for M-ary frequency shift keying/M-ary phase shift keying/M-ary differential phase shift key/and M-Level Quadrature Amplitude Modulation are obtained through moment-generating function (MGF) approach. Conventional integration process has probability of uncertainty and erroneousness because of composite mathematical calculations and infinite integration bounds. MGF method is used to avoid complex numerical computation for calculation of SEP. Comparison of SEP for diverse values of Rician factor “K”, Nakagami-M factor, modulation order “M” and diversity order “N” has been carried out.

Comparative Analysis of Gaussian Minimum Shift Keying and Binary Differential Phase Shift Keying Signalling Schemes with Maximal Ratio Combiner over Rayleigh Environment

2011 ◽  
Vol 367 ◽  
pp. 205-214
Author(s):  
Z.K. Adeyemo ◽  
R.O. Abolade
Keyword(s):  
Phase Shift ◽  
Mobile Communication ◽  
Rayleigh Fading ◽  
Diversity Combining ◽  
Phase Shift Keying ◽  
Differential Phase Shift ◽  
Differential Phase ◽  
Differential Phase Shift Keying ◽  
Gaussian Minimum Shift Keying ◽  
Shift Keying

This paper presents the investigation of two transmission schemes with a diversity combining technique over Rayleigh fading channels. Each of Gaussian Minimum Shift Keying (GMSK) and Binary Differential Phase Shift Keying (BDPSK) transmission schemes was considered with a diversity combining technique known as Maximal Ratio Combining (MRC). Rayleigh fading channel is used statistically to model the communication channel where there is no direct line of sight, which is the attribute of mobile communication. Mobile communication industry is faced with the problem of providing the technology that will be able to support a wide variety of services irrespective of distance, other signals interferences, noise, and objects in the medium of transmission. The system model for the received signal was developed using Jakes model under two propagation paths. The developed model was simulated based on the developed algorithms using MATLAB application package. Two different types of data, randomly generated symbols and image data, were used as the information signal. The results obtained showed that the GMSK scheme had higher average Bit Error Rate (BER) values than the corresponding BDPSK scheme which indicates better performance of BDPSK when the same numbers of bits were transmitted over this channel. Consequently, the quality of the images received with both signalling schemes was in agreement with the BER results. The results obtained showed that though GMSK scheme is comparatively more immune to noise and other interfering signals in this type of fading environment but BDPSK scheme has the advantage of feeding back the output signal to form differential with the input signal which invariably resulted in better average BER of the signal.

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