Title :
Error Performance of DQPSK with EGC Diversity Reception Over Arbitrarily Correlated Fading Channels
Author :
Falujah, Iyad Al ; Prabhu, Vasant K.
Author_Institution :
Dept. of Electr. Eng., Univ. of Texas, Arlington, TX
Abstract :
This paper derives the average bit error probability (BEP) of the differential quaternary phase shift keying (DQPSK) with postdetection equal gain combining (EGC) diversity reception over arbitrarily correlated Nakagami-m and Rician fading channels. Our main contribution lies in presenting relatively simple BEP expressions, the error expressions are given in terms of a finite sum of a finite-range integral. The penalty in signal to noise ratio (SNR) due to arbitrarily correlated channel fading is investigated. It is observed that the performance degradation due to the correlation among the diversity branches in Rician fading channels is severer than that in Nakagami-m fading channels as a result of the presence of the specular component.
Keywords :
Nakagami channels; Rician channels; differential phase shift keying; diversity reception; error statistics; DQPSK; EGC diversity reception; Nakagami-m fading channels; Rician fading channels; arbitrarily correlated fading channels; bit error probability; differential quaternary phase shift keying; error performance; finite-range integral; postdetection equal gain combining diversity reception; signal-to-noise ratio; Differential quadrature phase shift keying; Diversity reception; Error probability; Fading; Integral equations; Performance gain; Phase shift keying; Rician channels; Signal to noise ratio; Thermal degradation;
Conference_Titel :
Vehicular Technology Conference, 2006. VTC-2006 Fall. 2006 IEEE 64th
Conference_Location :
Montreal, Que.
Print_ISBN :
1-4244-0062-7
Electronic_ISBN :
1-4244-0063-5
DOI :
10.1109/VTCF.2006.390
