论文标题
合作NOMA的混合能量收集方案：错误性能方法
A Hybrid Energy Harvesting Protocol for Cooperative NOMA: Error Performance Approach
论文作者
论文摘要
最近，通过能源收集（EH）调整了合作的非正交多重访问（CNAMA），以提高能源效率并延长能源约束的无线网络的寿命。本文提出了混合EH方案辅助CNOMA，这是两个主要现有EH协议（功率拆分（PS）和时间切换（TS））的组合。拟议方案中用户的端到端位错误率（BER）表达式是通过中Nakagami- $ m $褪色渠道获得的。将提出的混合EH（HEH）协议与基准方案（即现有的EH协议和无EH）进行了比较。基于广泛的模拟，我们揭示了分析结果与模拟完全匹配，该模拟证明了推导的正确性。数值结果还表明，HEH-CNOMA的表现明显优于基准。此外，我们讨论了EH因子的最佳值，以最大程度地减少HEH-CNOMA中的误差概率，并表明可以根据通道参数获得最佳值。
Cooperative non-orthogonal multiple access (CNOMA) has recently been adapted with energy harvesting (EH) to increase energy efficiency and extend the lifetime of energy-constrained wireless networks. This paper proposes a hybrid EH protocol-assisted CNOMA, which is a combination of the two main existing EH protocols (power splitting (PS) and time switching (TS)). The end-to-end bit error rate (BER) expressions of users in the proposed scheme are obtained over Nakagami-$m$ fading channels. The proposed hybrid EH (HEH) protocol is compared with the benchmark schemes (i.e., existing EH protocols and no EH). Based on the extensive simulations, we reveal that the analytical results match perfectly with simulations which proves the correctness of the derivations. Numerical results also show that the HEH-CNOMA outperforms the benchmarks significantly. In addition, we discuss the optimum value of EH factors to minimize the error probability in HEH-CNOMA and show that an optimum value can be obtained according to channel parameters.
