Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4957609 | Physical Communication | 2017 | 22 Pages |
Abstract
In this paper, we introduce a grouping approach for power allocation in the multi-user OFDM-DCSK (MU-OFDM-DCSK) system under the frequency selective fading channels. The suggested procedure is convenient also for the other comb-type non-coherent schemes with similar structure. Furthermore, we derive analytical bit error rate (BER) expression for the grouped scheme and offer an optimal power distribution policy for both the single- and multi-user scenarios. This power assignment strategy is formulated by a min-max problem with the target of the worst group BER minimization incorporating total power and interference constraints. Simulation results confirm the advantages of the proposed power allocation scheme.
Keywords
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Physical Sciences and Engineering
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Computer Networks and Communications
Authors
Majid Mobini, Mohammad Reza Zahabi,