R. Rahimi and G. Dadashzadeh
Improved Power Allocation in Parallel Poisson Channels
R. Rahimi and G. Dadashzadeh: Electrical and Electronic Engineering Department, Shahed University, Tehran, Iran, email: rezgar_rahimi@yahoo.com.
Abstract: The optimum power allocation for parallel Poisson channels which can minimize average power for obtaining maximum capacity is considered. In this paper a new power allocation scheme that outperforms previous schemes for more than enough powers is presented. Since in Poisson channels unbounded channel feeding with input power does not lead to a better utilization of the channel capacity, in the presented scheme extra powers that are more than required power for achieving maximum capacity are not used. If power ...
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