Signal detection in massive Multiple-Input & Multiple-Output (MIMO) systems usually confronts the challenge of low detection accuracy. Therefore, more effective models and algorithms are still solicited by real-life applications. Artificial intelligence has been widely applied to improving the performances of signal detection. Herein, inspired by the ideas of OAMP-Net model, an intelligent signal detection method, i.e. GROAMP-Net, is put forward. Similar to OAMP-Net, GROAMP-Net also expands the Orthogonal Approximate Message Passing (OAMP) iterations to a deep learning network, in the way that a layer fulfills one iteration. To improve its detection performance, on one hand, GROAMP-Net introduces residual structure to timely correct its signal estimation errors layer by layer; on the other hand, a kind of gate unit is involved to optimize those layer parameters before estimation. Then a corresponding algorithm is designed accordingly based on the GROAMP-Net model. Theoretic analyses show that the computation complexity of GROAMP-Net algorithm keeps the same as that of congeneric algorithms. However, a series of simulation experiments indicate that the comprehensive performances of GROAMP-Net algorithm are better than many benchmarks, including those congeneric ones.
The thought of national integration is an important part of the Marxist national theory, and its thought runs through the Chinese Marxist national integration theory and the socialist national theory with Chinese characteristics. The interaction, communication and integration of various ethnic groups and the thought of Chinese nation community are the main contents of the theoretical system of ethnic groups with Chinese characteristics, which is the inheritance and development of Marxist theory of ethnic integration. Adhering to national equality and unity, strengthening national exchanges, enhancing national cohesion, promoting the prosperity and development of all ethnic groups are the common contents of Marxist national integration theory and the construction of a theoretical system of ethnic groups with Chinese characteristics, and their ideological roots come down in one continuous line. The Marxist theory of national integration conforms to the law of historical development. The “great integration” of the Chinese nation in history provides a historical basis for the current exchanges and integration of various nationalities. The consciousness of the Chinese nation’s community is an ideological consensus reached on its objective basis. Consolidating the consciousness of the Chinese nation’s community is based on the Marxist theory of national integration, the sublimation of the theory of communication and integration of the Chinese nation, and has important guiding significance for the current national work.
首先从历史回顾和战略构想角度对于"构建以国内大循环为主体、国内国际双循环相互促进的新发展格局"进行了分析,提出中国参与国际大循环的1.0、2.0、3.0版本,从资源品输出国向全球生产制造中心转变的经济发展历程,双循环格局将推动中国未来向全球中高端生产制造中心、全球创新中心、全球市场中心与全球金融中心迈进.其次分析了在全球环境不确定性上升、逆全球化趋势与中西竞争摩擦加剧背景下,传统国际循环模式面临产业转移回流、贸易依存度降低的危机和中国在国际循环中角色与定位转型升级的新机.最后,阐释了推动构建"双循环"新格局就是统筹国内国际两个大局、统筹发展和安全两件大事的发展内涵和战略深意,应积极扩大内需,把握第四次产业革命机遇,构建内外联通走廊,使国内国际双循环相互促进、联动发展.
To improve the topology management efficiency and network performances of ultra-dense networks, this paper proposes a network state-based dynamic topology management approach. A network state of a base station is a two-tuple consisting of its effective backhaul capability and backhaul traffic demand. The problem of the wireless backhaul network topology management is changed to a superior node selection problem, which is formulated as an optimization problem by minimizing the total number of superior nodes of all base stations in wireless backhaul networks. The solutions to the optimization problem are specified by a distributed algorithm. Taking the effective backhaul capacity and the pathloss of the backhaul links as an effective capability respectively, two topology management solutions can be obtained. Simulation results show that the proposed approach enables the backhaul capacity and actual backhaul throughput to adapt to the dynamic changing of the backhaul traffic demand. Moreover, from the perspective of backhaul satisfaction ratio, the effective backhaul capacity-based solution outperforms the backhaul pathloss-based solution.
中国式现代化既有各国现代化的共同特征,更有基于自己国情的鲜明特色.党的二十大报告将中国式现代化所具有的中国特色概括为五大特征.第一,人口规模巨大的现代化的核心要义是惠及全部人口,发挥人口优势是实现人口规模巨大的现代化的关键举措,适度人口增长是人口规模巨大的现代化的必然要求.第二,共同富裕的现代化是社会主义现代化的本质要求,是人民至上的现代化逻辑的重要体现;要着力解决不平衡不充分的发展问题,在高质量发展中促进共同富裕.第三,物质文明和精神文明相协调的现代化是中国式现代化的应有之义,是避免西方文化霸权的必然选择,是夯实社会主义制度的重要依托.第四,人与自然和谐共生的现代化是中国式现代化的重要内涵,生态文明的同步建设是中国式现代化的必由之路,从系统角度实现人与自然和谐共生是中国式现代化的现实选择.第五,走和平发展道路的现代化是中国式现代化的外交准则,新型国际关系是走和平发展道路的现代化的战略选择,人类命运共同体是走和平发展道路的现代化的价值内核,全球治理体系变革是走和平发展道路的现代化的客观要求.这五个维度的特征相互联系,共同阐释了中国式现代化的深刻内涵.
