University:
College
Course:
College Engineering
Academic year:

2023
Views:

432

Pages:

1
Author:

D. Krishnan

Binary signaling over a Rayleigh fading, chame! * In a mobile radio environment, due to multipath reception, there will be fluctuations in the amplitude and phase of transmited signal → Consider the transmission of Binary data over a Rayleigh fading channe'. the complex (low-pass) envelope of the received signal is 5(t) = 0 exp(-jp) (t)+w(t) Where Set) is the complex envelope of teted signal. ar- Raykigh distributed vandım variable phase shift in transmision C) AWEN. Assume channel is do transmisioη flat in both time and frequency. & Coherent BPSK is wed to Let the average probability of symbol enor be Pe() erfc (T) Here . ad'Eb ⇒ attenuated vesion of . To evaluate the aug fading and nove, ang probability of symbol error in the combined presence of average peer) over all possible values of we must axuage 8 Here for *exp(-) 10 d. mean value; to noti received rignal specialdesing raggfbit vatla Y. E-EE(art] N The final result Pe (1) Equation defines the averge probability of bit error rak for Coherent PSK over a Rayleigh distinbwed fraing channel My fre Binary DPSK Pe 2+) etc.