Average symbol error probability for M-ary DDPSK

2008 ◽  
Vol 44 (20) ◽  
pp. 1203 ◽  
Author(s):  
I. Kostic
Keyword(s):  
Error Probability ◽  
Symbol Error Probability ◽  
Average Symbol Error Probability

scholarly journals Performance of cooperative multi-hop multiuser relaying networks

2018 ◽  
Vol 15 (2) ◽  
pp. 213-224
Author(s):  
Aleksandra Panajotovic ◽  
Nikola Sekulovic ◽  
Aleksandra Cvetkovic ◽  
Daniela Milovic
Keyword(s):  
Spectral Efficiency ◽  
Error Probability ◽  
Scheduling Algorithm ◽  
Signal Transmission ◽  
Maximal Ratio Combining ◽  
Opportunistic Scheduling ◽  
Symbol Error Probability ◽  
Relay System ◽  
Cooperative Relays ◽  
Average Symbol Error Probability

This paper presents both capacity and error performances of cooperative multi-hop multiuser relay system. All multi-hop cooperative relays in the system apply maximal-ratio combining (MRC) scheme, while signal transmission to end users is carried out using opportunistic scheduling algorithm. Numerical results for spectral efficiency and average symbol error probability (ASEP) for considered system are presented and discussed.

New Accurate Approximation for Average Symbol Error Probability Under κ-μ Shadowed Fading Channel

2020 ◽  
Author(s):  
Yassine Mouchtak ◽  
Faissal El Bouanani
Keyword(s):  
Fading Channel ◽  
Error Probability ◽  
Additive White Gaussian Noise ◽  
Upper And Lower Bounds ◽  
Symbol Error Probability ◽  
M Phase ◽  
Shift Keying ◽  
Shadowed Fading ◽  
Modulation Schemes ◽  
Average Symbol Error Probability

Abstract This paper proposes new accurate approximations for average symbol error probability (ASEP) of a communication system employing either M-phase-shift keying (PSK) or differential quaternary PSK (DQPSK) modulation schemes, with Gray coding over κ-μ shadowed fading channel. Firstly, new accurate approximations of symbol error probability (SEP) of both modulation schemes are derived over additive white Gaussian noise (AWGN) channel. Leveraging the trapezoidal integral method, a tight SEP's approximation for M-PSK modulation is presented, while new upper and lower bounds for Marcum $Q$-function of the first order (MQF), and subsequently those for SEP under DQPSK scheme, are proposed. Next, these bounds are linearly combined to propose a highly accurate SEP's approximation. The key idea manifested in the decrease property of modified Bessel function $I_{v}$, strongly related with MQF, with its argument v. Finally, theses approximations are used to tackle ASEP's approximation under $\kappa-\mu$ shadowed fading. Numerical results show the accuracy of the presented approximations compared to the exact ones.

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