A5101824781- Advanced MIMO Systems Optimization
- Energy Harvesting in Wireless Networks
- Cooperative Communication and Network Coding
- Millimeter-Wave Propagation and Modeling
- Wireless Communication Networks Research
- Metal complexes synthesis and properties
- Advanced Polymer Synthesis and Characterization
- Magnetism in coordination complexes
- Organometallic Complex Synthesis and Catalysis
- Phytase and its Applications
- advanced mathematical theories
- Porphyrin and Phthalocyanine Chemistry
- Neonatal Health and Biochemistry
- Lanthanide and Transition Metal Complexes
- Theoretical and Computational Physics
- Protein Structure and Dynamics
- Inorganic Chemistry and Materials
- Liquid Crystal Research Advancements
- Porphyrin Metabolism and Disorders
- Advanced Wireless Network Optimization
- Supramolecular Chemistry and Complexes
- Chemistry and Stereochemistry Studies
- Selenium in Biological Systems
- Interconnection Networks and Systems
- Animal Diversity and Health Studies
China Mobile (China)
2015-2016
Peking University
1993-2015
Pennsylvania State University
2003
Massive MIMO systems offer a high spatial resolution that can drastically increase the spectral and/or energy efficiency by employing large number of antennas at base station (BS). In distributed massive system, capacity fiber backhaul links and remote radio heads is usually limited, which becomes bottleneck for realizing potential performance gain both downlink uplink. To solve this problem, we propose joint antenna selection user scheduling able to achieve portion provided array with only...
Heterogeneous networks (HetNets) consisting of macro cells with very large antenna arrays and a secondary tier small few antennas each can well tackle the contradiction coverage network high data rate at hot spots. However, it is not permissible to assign orthogonal pilot sequences for all supported users due number. Hence, we propose reduction scheme based on heterogeneous system configurations unique topology this HetNet. The reusing causes presence contaminated channel state information...
Abstract A series of copper bilirubinate complexes (CuBR) was synthesized in solution and solid state to mimic the black color black‐pigment gallstone explore formation mechanism vitro . The variation contents these samples indicated that CuBR also exhibits nonstoichiometric characteristics from FTIR study, i.e., both so‐called acid neutral complex moieties exist CuBR. NH groups pyrrole lactam bilirubin (H 2 BR) are binding ions. An EPR study demonstrates generation free radicals its...
This article presents an approach using fractal to solve the multiple minima problem. We use Newton–Raphson method of MM3 molecular mechanics program scan conformational spaces a model molecule and real molecule. The results show each energy minimum, maximum point, saddle point has basin initial points converging it in spaces. Points different extrema are mixed, form structures around boundaries. Singular seem involve formation fractal. When searching within small region boundaries,...
Spectroscopic studies of various types gallstones carried out in China are reviewed. Three basic classes surveyed: cholesterol stones, brown pigment and black stones. The emphasis this review is on gallstones. primary spectroscopic methods used the surveyed Fourier transform infrared absorption Raman scattering. Chemical components studied include cholesterol, bile pigments, glycoproteins, proteins, bilirubin metal complexes, salts calcium other metals. Further needed characterize...
Massive multiple-input multiple-output (MIMO) systems and small cell networks are both regarded as promising candidates to meet the exponential growth of mobile data traffic for next generation (5G) wireless communications. Hence, a new kind multitier which combine massive MIMO macro cells with secondary tier is proposed resolve contradiction large network coverage high rate. In such networks, it inevitable allocate nonorthogonal uplink pilot sequences user equipment (UE) due number users....
The amorphous multi-connected networks have e-merged as a new trend to meet the fast increasing wireless capacity and coverage demands of future 5G networks. To realize such networks, ultra dense network (UDN) technology is expected promising candidate for its flexible architecture abundant radio resources. Yet, multi-connection optimization UDN still left an open problem nowadays. This motivates us explore how many which access points (APs) should be accessed in UDNs. solve this problem, we...
Massive multiple-input multiple-output (MIMO) is an attractive solution to achieve high data rate and tackle interference. In this paper, we study the downlink of a two-cell massive MIMO system employing coordinated zero-forcing beamforming with limited feedback, where each base station (BS) acquires both direct link channel state information (DCSI) cross CSI (CCSI) from users through feedback link. The DCSI used support multi-user transmission (control intra-cell interference) at BS CCSI...
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