Optimal energy assignment for frequency selective fading channels
نویسندگان
چکیده
AbsrmtThis paper describes a method to minimize the total energy to communicate data over a frequency selective fading channel using multicarrier data transmission. The energy is minimized given a desired aversge bit e m r rate at a fixed gross bit rate. For a number of configurations the optimal energy distribution is calculated analytically. For other Eonfigurations we present a generic numerical approach. To evaluate the perfonnance, a comparison is made with two other commonly used eneigy assignment schemes. The advantage of this scheme is most appamnt when the channel sutYers from deep fades, as is the case in mobile wireless axnmunications.
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