Universal Journal of Electrical and Electronic Engineering Vol. 1(4), pp. 129 - 133
DOI: 10.13189/ujeee.2013.010405
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Comparison between OQPSK and DPSK Bidirectional Radio over Fiber Transmission Systems

Fady I. El-Nahal , Mamoun A. Salha ^*
Department of Electrical Engineering, Islamic University of Gaza, Gaza, Gaza Strip, Palestinian Territories

ABSTRACT

Radio over fiber is becoming an increasingly important technology for the wireless market since it introduces a higher data transmission rate and large bandwidth. In this paper, we have compared OQPSK and DPSK bidirectional radio over fiber ROF systems, where an offset quadrature phase shift keying (OQPSK) or differential phase shift keying (DPSK) signals are used for down-link and an on-off keying (OOK) signal re-modulated for up-link. Several measurements were performed including Bit Error Rate (BER) curves for uplink and downlink, RSOA gain curve and noise figure with the variation of input power and temperature for each system.

KEYWORDS
Radio over Fiber (Rof), Reflective Semiconductor Optical Amplifier (RSOA), Offset Quadrature Phase Shift Keying (OQPSK), Differential Phase Shift Keying (DPSK)

Cite This Paper in IEEE or APA Citation Styles
(a). IEEE Format:
[1] Fady I. El-Nahal , Mamoun A. Salha , "Comparison between OQPSK and DPSK Bidirectional Radio over Fiber Transmission Systems ," Universal Journal of Electrical and Electronic Engineering, Vol. 1, No. 4, pp. 129 - 133, 2013. DOI: 10.13189/ujeee.2013.010405.

(b). APA Format:
Fady I. El-Nahal , Mamoun A. Salha (2013). Comparison between OQPSK and DPSK Bidirectional Radio over Fiber Transmission Systems . Universal Journal of Electrical and Electronic Engineering, 1(4), 129 - 133. DOI: 10.13189/ujeee.2013.010405.