维普中文期刊产品整合服务
8篇 您的检索式:作者名="NING PingZhi"
    题名 作者 年代 出处 被引量
1SD-pair shell moel for identical system显示文摘Luo Yan'an Pan Feng Ning Pingzhi 2005Chin Phys Lett2005,22,:1
2SD-pair shell model calculation of even-even Mo isotopes显示文摘Zhang Ruiping Luo Yan'an Ning Pingzhi 2006Euro phys Lett2006,73,:1
3Influence of the In-medium Nucleon Swelling on Pion-Nucleus Scattering at High EnergyShen, Hong Ning, Pingzhi Cai, Chonghai Xiang, Linchuan 1995Chinese journal of nuclear physics1995,,2:0
4Phenomenological Analysis of Binding Energies of ■ HypernucleiCai Chonghai Ning Pingzhi Department of Physics,Nankai University,Tiaujin 300071 1997Chinese journal of nuclear physics1997,,1:0
5A study of particle number fluctuation under BCS theory显示文摘Particle number fluctuations in BCS theory are studied with the relativistic mean-field theory and the shell effects of particle number fluctuations are first discovered. By analyzing the relative errors of the particle number fluctuations, we find that the particle number fluctuations are relevant with the odd-even character. We later apply this method to the examination of the new shell structure, showing that N = 184 for the neutron is indeed a new closed shell.DING BinGang NING PingZhi ZHANG DaLi LU DingHui 2007Science China(Physics,Mechanics & Astronomy)2007,50,2:0
6Alpha Transfer Effects in Oxygen Burning Reactions in Highly Evolved StarsLi, Lei Shen, Hong Ning, Pingzhi He, Guozhu 1995Chinese journal of nuclear physics1995,,4:0
7One ω-Meson Exchange Potential at Finite TemperatureZheng, Guotong Ning, Pingzhi Su, Rukeng 1994Chinese journal of nuclear physics1994,,1:0
8Impact of non-ideal UE hardware on cell-free massive MIMO network with centralized operation显示文摘This paper investigates the impact of non-ideal user equipment(UE)hardware on a cell-free(CF)massive MIMO(mMIMO)network with centralized operation under spatially correlated channels.The minimum mean-squared error(MMSE)estimator can be derived with the help of the generic non-ideal UE hardware model.It is demonstrated that even if the effective signal-to-noise ratio approaches infinity,pilot contamination and imperfect hardware can cause a non-zero estimation error floor.After that,a lower bound is determined for the ergodic uplink capacity of the centralized CF mMIMO network under non-ideal UE hardware.Moreover,the optimal receive combining vector is obtained to maximize the uplink spectral efficiency(SE).The maximum ratio(MR)and regularized zero-forcing(RZF)combining schemes are offered as alternatives in light of the computational complexity of the MMSE receiver.Comparing the RZF to the MMSE scheme under different levels of hardware impairments,our findings indicate that the RZF receiver suffers a negligible loss in total SE.For MR combining,a novel closed-form uplink achievable SE expression is obtained based on the MMSE estimator and the use-and-then-forget bounding technique.This expression gives vital insights into the achievable uplink performance with UE hardware impairments.Besides,for various hardware impairment factors,the impact of pilot sequence length on average sum SE is disclosed for different receive combining schemes.To increase the overall SE of the max-min fairness scheme,a heuristic fractional power control scheme with UE hardware impairments is developed,which can essentially avoid sacrificing the SE of other UEs while maximizing the SE of the unluckiest UE in the whole network.Finally,our theoretical performance analysis and power control algorithm are validated by simulation results,and fundamental design guidelines are provided for selecting hardware satisfying the practical UE requirements.Ning LI Pingzhi FAN 2024Science China(Information Sciences)2024,67,4:0
返回顶部 每页显示:
共1页 首页 上一页 第1页 下一页 末页 /1 跳转

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1 渝公网安备 50019002500403号 违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费