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arXiv 1801.07569eess.SP
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多载波系统中的约束联合比特和功率分配

Constrained Joint Bit and Power Allocation for Multicarrier Systems

Ebrahim Bedeer, Octavia A. Dobre, Mohamed H. Ahmed, Kareem E. Baddour

摘要:

针对衰落环境下的多载波系统,提出了一种新的低复杂度的比特和功率联合次优分配算法。该算法联合最大化吞吐量和最小化发射功率,同时保证每个子载波的目标误比特率(BER),并满足对总发射功率的约束。仿真结果说明了所提出的方案的性能,并证明了其优越性相比,在[4]中的算法具有相似或降低的计算复杂度。此外,结果表明,所提出的次优算法的性能接近的最优穷举搜索,显着降低计算复杂度。

英文摘要:

This paper proposes a novel low complexity joint bit and power suboptimal allocation algorithm for multicarrier systems operating in fading environments. The algorithm jointly maximizes the throughput and minimizes the transmitted power, while guaranteeing a target bit error rate (BER) per subcarrier and meeting a constraint on the total transmit power. Simulation results are described that illustrate the performance of the proposed scheme and demonstrate its superiority when compared to the algorithm in [4] with similar or reduced computational complexity. Furthermore, the results show that the performance of the proposed suboptimal algorithm approaches that of an optimal exhaustive search with significantly lower computational complexity.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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