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中文摘要：
该文针对聚合干扰下小小区网络协作传输的场景,分析了宏小区基站的物理位置服从泊松分布,且多用户预编码采用线性预编码时用户端的性能。通过基于概率密度函数的性能分析法,推导出小小区网络协作传输的中断概率、容量以及误符号率的闭合表达式,结果表明由于聚合干扰的存在,仅仅依靠小小区网络基站天线数的增加并不能持续提高用户端的性能。进一步,针对小小区网络中用户的接入问题,提出了一种基于能效最大化的用户接入方案,并对所提方案进行了性能分析和仿真验证,从结果可以看到所提小小区网络用户接入方案在提高系统能效方面要优于其他接入方案,仿真结果验证了基于能效最大化的接入方案的优越性,并验证了本文理论分析的正确性。
英文摘要：
Aiming at the scenario of Small cell under aggregate interference,the performance of micro base station locations follow Poisson distribution and the precoder of MU-MIMO adopts linear precoding was analyzed. The closed-form expression of outage probability,system capacity and symbol error probability of Small cell were derived,the results revealed that the performance of user can not rise continuously with the Small cell base station antennas increasing because of the existence of aggregated interference. Furthermore,the user access mechanism based on energy efficiency was proposed in order to solve the Small cell user access problems,the theoretical analysis were derived and verified via simulations,the results show that the scheme proposed can improve the system energy efficiency performance and was superior to the other access schemes,which can verify the superiority of the access scheme based on maximum energy efficiency and correct theoretical analysis.
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