Performance Assessment of a WCDMA Based Radio-over-Fiber System with Near-Far Effect: Uplink Scenario
Subject Areas : electrical and computer engineering
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Keywords: RoF WCDMA near-far effect equalization total degradation uplink,
Abstract :
In this research the effect of a radio-over-fiber (RoF) subsystem on the total degradation (TD) performance of uplink wideband code division multiple access (WCDMA) is assessed in the presence of near-far effect. The study considers the use of pilot-aided channel estimation to neutralize the optical subsystem nonlinearities for different channel conditions, estimation intervals, and near-far factors (NFF). The results demonstrate that the proposed equalization technique almost compensates for the joint impact of the optical subsystem nonlinearity and the near-far effect irrespective of spreading factor, large signal distortion, estimation interval, and user number.
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