Performance of RAKE Reception for Ultra Wideband Signals in a Lognormal-fading Channel
نویسندگان
چکیده
RAKE reception for Ultra Wideband is crucial as the radiated power is restricted to be very low and there exist many resolvable multipath components. In this paper, the effectiveness of RAKE reception is investigated analytically. First, the conditions under which the interference in the RAKE fingers can be ignored are discussed. Then a method is introduced to derive the explicit expression of RAKE performance for the various combining methods for a lognormal fading channel. Numerical results show that RAKE reception can greatly improve the performance, and equal gain combining has comparable performance with maximal ratio combining.
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