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Analysis of optical carrier-to-sideband ratio for improving transmission performance in fiber-radio links

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5 Author(s)
Lim, C. ; Dept. of Electr. & Electron. Eng., Univ. of Melbourne, Vic., Australia ; Attygalle, M. ; Nirmalathas, A. ; Novak, D.
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In this paper, we investigate the optimum carrier-to-sideband ratio (CSR) for maximizing the transmission performance of an optically modulated millimeter-wave signal in a fiber-wireless system via experiment, theory, and simulation. We present a simple analytical model to assess the performance enhancement resulting from optical CSR variations. The model is capable of analyzing systems incorporating binary phase-shift keyed and quaternary phase-shift keyed modulation formats. We quantify the optical CSR of a point-to-point fiber-radio link and establish that the performance of the fiber-wireless links can be significantly improved when the optical signal is transmitted at the optimum CSR of 0 dB. The analysis further shows that the optimum optical CSR is independent of transmission bit rates.

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Microwave Theory and Techniques, IEEE Transactions on  (Volume:54 ,  Issue: 5 )