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Differential Maximum Ratio Combining (MRC)-Based Throughput Analysis on Dual-Fading Models of Slotted-Aloha CDMA Systems

机译:基于微分最大比率组合(MRC)的时隙Aloha CDMA系统双衰落模型吞吐量分析

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摘要

In this paper we investigate throughputs of Slotted-ALOHA code division multiple access systems with differential detection upon L-branch antenna by means of maximum ratio combining (MRC) diversity technique. We investigate the effects of co-channel interference by employing two different fading models (i.e. between the desired signals and its interferences.) We consider systems under Nakagami/Nakagami and Rician/Nakagami fading environments. The purpose of employing MRC diversity and differential phase shift keying with L-branch antenna is to overcome multipath fading interference in order to enhance the performance of the systems. Our research indicates that the implementation of L-branch antenna in the receiver have reasonably increased the throughputs of the systems. Furthermore, we also investigate the inverse relation between interference signal and the throughputs of the systems. We further point out that the value of Nakagami fading parameter M and Rician factor K are proportional to the achievable throughputs of the systems.
机译:在本文中,我们通过最大比合并(MRC)分集技术研究了L分支天线上具有差分检测的Slotted-ALOHA码分多址系统的吞吐量。我们通过采用两种不同的衰落模型来研究同信道干扰的影响(即在所需信号及其干扰之间)。我们考虑了Nakagami / Nakagami和Rician / Nakagami衰落环境下的系统。 L分支天线采用MRC分集和差分相移键控的目的是克服多径衰落干扰,以增强系统的性能。我们的研究表明,在接收器中使用L分支天线可以合理地提高系统的吞吐量。此外,我们还研究了干扰信号与系统吞吐量之间的反比关系。我们进一步指出,Nakagami衰落参数M和Rician因子K的值与系统可达到的吞吐量成正比。

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