Generalized Switch-and-Examine Combining with an output threshold

In this paper, we investigate a finger combining scheme to save the power consumption of mobile rake receiver without the performance loss. The proposed scheme is called as GSEC(Generalized Switch-and-Examine Combining) with an output threshold which selects any branches whose SNR is above an input-threshold until the combined SNR is larger than an output-threshold or all the fingers are examined. The input-threshold and output-threshold are fixed predetermined values based on the practical condition. We also compared the proposed technique with the GSEC. Simulation results show that the proposed technique leads to less complexity than conventional GSC and GSEC while providing nearly the same performance.