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Research facility · Nanjing · China

Purple Mountain Laboratories

In research, Purple Mountain Laboratories stands highest in Engineering (#455 of 6,636 worldwide), Electrical and Electronic Engineering (#321 of 2,318 worldwide) and Physical Sciences (#1,876 of 12,888 worldwide), 2022–2025. Relative to its size it is most specialised in Computer Networks and Communications, Electrical and Electronic Engineering and Aerospace Engineering — Computer Networks and Communications is 15.3× its share of world research.

pmlabs.com.cnROR OpenAlex
World rank, 2022–2025
#3,355
of 28,054 · #7,665 all time
Rank in China
#821
of 3,058
Research works
1.6k
▲ 24069% vs 2013–17
Citations
20k
12.3 per fractional work
Top-10% rate
22.2%
record average 16.5%
Open access
21%
world 28%

What is Purple Mountain Laboratories known for in research?

The fields where it stands highest, 2022–2025, ranked among every institution above the floor in each field.

FieldWorld rankWhere that sitsTop-10% rateWorksAll time
EngineeringField #455 of 6,636 21.1%640 #1277
Electrical and Electronic EngineeringSubfield #321 of 2,318 16.1%427 #839
Physical SciencesDomain #1,876 of 12,888 22.1%1,084 #4618
Aerospace EngineeringSubfield #150 of 795 40.4%118 #862
Computer Networks and CommunicationsSubfield #137 of 705 22.6%153 #844
Computer ScienceField #1,040 of 4,667 23.8%373 #2388
Artificial IntelligenceSubfield #956 of 1,884 23.6%103 #1974

Each strip is that field’s whole ranked pool, with the notch where Purple Mountain Laboratories sits in it, in the colour of the band that rank falls in. The track under the rate is the rate itself: it carries no world mark, because the world rate differs by field (from about 6% to 21% in this record).

Which of those standings moved

The same fields on both windows: where it stood over the whole record, and where it stands in 2022–2025. The distance is the story, and it is the one thing the two rank columns above cannot show.

  1. Engineering#1,277 #455
  2. Electrical and Electronic Engineering#839 #321
  3. Physical Sciences#4,618 #1,876
  4. Aerospace Engineering#862 #150
  5. Computer Networks and Communications#844 #137
  6. Computer Science#2,388 #1,040
  7. Artificial Intelligence#1,974 #956
all time2022–2025, better2022–2025, worse

A dot further right is a better standing. Fields it was not ranked in over the whole record are left out.

What does Purple Mountain Laboratories specialise in?

Where its research is concentrated relative to its size: Computer Networks and Communications takes 15.3× the share of its output that it takes of world research.

  1. Computer Networks and CommunicationsSubfield · 153.2 works15×
  2. Electrical and Electronic EngineeringSubfield · 427.3 works11×
  3. Aerospace EngineeringSubfield · 118.4 works9.0×
  4. Signal ProcessingSubfield · 25.9 works7.6×
  5. Computer ScienceField · 372.8 works4.3×
← less than its size predicts1×more →

Location quotient, a volume reading rather than an impact one. It surfaces small, lopsided specialities.

Field profile

Location quotient across every field it publishes in: outside the ring is more than an institution of this size would be expected to publish, inside it is less.

Agricultural and Biological Sciences: 0.02× its world share, 1 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 0.15× its world share, 9 worksBiochemistry, Geneti…Neuroscience: 0.12× its world share, 2 worksNeurosciencePharmacology, Toxicology and Pharmaceutics: 0.04× its world share, 0 worksPharmacology, Toxico…Chemical Engineering: 0.17× its world share, 1 worksChemical EngineeringChemistry: 0.07× its world share, 1 worksChemistryComputer Science: 4.26× its world share, 373 worksComputer ScienceEarth and Planetary Sciences: 0.18× its world share, 3 worksEarth and Planetary …Energy: 0.10× its world share, 1 worksEnergyEngineering: 3.79× its world share, 640 worksEngineeringEnvironmental Science: 0.07× its world share, 4 worksEnvironmental ScienceMaterials Science: 0.59× its world share, 23 worksMaterials ScienceMathematics: 0.08× its world share, 1 worksMathematicsPhysics and Astronomy: 1.46× its world share, 36 worksPhysics and AstronomyHealth Professions: 0.02× its world share, 0 worksHealth ProfessionsMedicine: 0.03× its world share, 6 worksMedicineBusiness, Management and Accounting: 0.08× its world share, 3 worksBusiness, Management…Decision Sciences: 0.60× its world share, 6 worksDecision SciencesEconomics, Econometrics and Finance: 0.03× its world share, 1 worksEconomics, Econometr…Psychology: 0.03× its world share, 1 worksPsychologySocial Sciences: 0.08× its world share, 12 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Computer Science, 4.3×. Every wedge is a field page.

Who are the top researchers at Purple Mountain Laboratories?

Ranked on the composite score, Jiao Zhang, Mingzheng Lei and Yuancheng Cai lead among researchers whose main affiliation is Purple Mountain Laboratories.

  1. 1 Jiao Zhang · #686,433 worldwide 53 citations · 17 works
  2. 2 Mingzheng Lei · #1,050,435 worldwide 42 citations · 27 works
  3. 3 Yuancheng Cai · #1,128,574 worldwide 35 citations · 33 works
  4. 4 Bingchang Hua · #1,183,959 worldwide 29 citations · 29 works
All ranked researchers at Purple Mountain Laboratories

Which keywords describe research at Purple Mountain Laboratories?

By fractional works in 2022–2025, weighted toward what it does more of than the world: Energy Efficiency, Deep Learning, Wireless Communications, Wireless Networks, Massive MIMO, MIMO Systems, Channel Estimation and Wireless Communication.

▲ more of its work than of the world’s◆ about the world’s share▼ less than the world’s

Size is fractional works in 2022–2025 in the topics tagged with each word; colour is the word's share of this institution's work against its share of the world's. The 40 words are chosen for being large and distinctive. Each links to the topic it comes from most.

All 40 words, with their numbers
  1. Deep Learning160▲ 4.2×64 topics
  2. Energy Efficiency128▲ 12×14 topics
  3. Wireless Communications94▲ 48×5 topics
  4. Machine Learning89▲ 2.4×46 topics
  5. Wireless Networks80▲ 47×9 topics
  6. Massive MIMO78▲ 85×3 topics
  7. MIMO Systems72▲ 81×3 topics
  8. Channel Estimation72▲ 75×4 topics
  9. Wireless Communication60▲ 36×6 topics
  10. Spectral Efficiency60▲ 80×3 topics
  11. Channel Modeling57▲ 41×6 topics
  12. Heterogeneous Networks57▲ 53×2 topics
  13. Beamforming56▲ 47×4 topics
  14. 5G Networks56▲ 24×5 topics
  15. Cellular Networks54▲ 97×1 topic
  16. Interference Alignment54▲ 97×1 topic
  17. 5G50▲ 79×3 topics
  18. Integrated Circuits50▲ 28×3 topics
  19. Neural Networks49▲ 2.8×28 topics
  20. IoT Security47▲ 13×3 topics
  21. Security39▲ 5.3×15 topics
  22. Communications37▲ 100×2 topics
  23. Hybrid Precoding37▲ 111×1 topic
  24. Millimeter Wave37▲ 111×1 topic
  25. Metamaterial36▲ 34×2 topics
  26. Wireless Sensor Networks36▲ 7.1×14 topics
  27. Antenna35▲ 36×1 topic
  28. Microstrip35▲ 36×1 topic
  29. Space-Time Coding35▲ 86×2 topics
  30. Intelligent Reflecting Surfaces34▲ 77×1 topic
  31. Non-Orthogonal Multiple Access34▲ 77×1 topic
  32. Anomaly Detection34▲ 10×4 topics
  33. Artificial Neural Networks34▲ 6.3×2 topics
  34. Physical Layer Security32▲ 65×2 topics
  35. Microwave Filters32▲ 49×1 topic
  36. Substrate Integrated Waveguide32▲ 49×1 topic
  37. Resource Allocation31▲ 16×7 topics
  38. Security and Privacy31▲ 14×3 topics
  39. Frequency Synthesizer30▲ 68×2 topics
  40. Microwave Photonics29▲ 29×2 topics

Which research topics does Purple Mountain Laboratories publish most on?

By volume in 2022–2025: Advanced MIMO Systems Optimization, Millimeter-Wave Propagation and Modeling, Antenna Design and Analysis and Advanced Wireless Communication Technologies.

Advanced MIMO Systems Op…54Advanced MIMO Systems Optimization: 54 fractional worksMillimeter-Wave Propagat…37Millimeter-Wave Propagation and Modeling: 37 fractional worksAntenna Design and Analy…35Antenna Design and Analysis: 35 fractional worksAdvanced Wireless Commun…34Advanced Wireless Communication Technologies: 34 fractional worksMicrowave Engineering and Waveguides: 32 fractional worksRadio Frequency Integrated Circuit Design: 26 fractional worksAdvanced Photonic Commun…25Advanced Photonic Communication Systems: 25 fractional worksPhotonic and Optical Dev…23Photonic and Optical Devices: 23 fractional worksNetwork Security and Int…22Network Security and Intrusion Detection: 22 fractional worksOptical Network Technolo…20Optical Network Technologies: 20 fractional works
Electrical and Electronic EngineeringAerospace EngineeringComputer Networks and Communications

Area is fractional works; colour is the subfield each topic belongs to.

  1. 1 Advanced MIMO Systems Optimization Electrical and Electronic Engineering 54 works
  2. 2 Millimeter-Wave Propagation and Modeling Electrical and Electronic Engineering 37 works
  3. 3 Antenna Design and Analysis Aerospace Engineering 35 works
  4. 4 Advanced Wireless Communication Technologies Electrical and Electronic Engineering 34 works
  5. 5 Microwave Engineering and Waveguides Electrical and Electronic Engineering 32 works
  6. 6 Radio Frequency Integrated Circuit Design Electrical and Electronic Engineering 26 works
  7. 7 Advanced Photonic Communication Systems Electrical and Electronic Engineering 25 works
  8. 8 Photonic and Optical Devices Electrical and Electronic Engineering 23 works
  9. 9 Network Security and Intrusion Detection Computer Networks and Communications 22 works
  10. 10 Optical Network Technologies Electrical and Electronic Engineering 20 works

How open and international is its research?

Against the world’s own shares — the tick on each track. Both are shares of its output, so they sit on one scale and can be read against each other as well as against the world.

openly available20.6%not open79.4%

World: 28% of research is openly available.

with international co-authors21.1%domestic only78.9%

World: 19% is written across borders.

How has Purple Mountain Laboratories's research output changed?

Output in 2018–2022 was 24069% higher than in 2013–2017.

201020152020
grewheldshrank

The same series as a ribbon — one cell per year, darker for more. The line above answers how much; this answers when.

Other research institutions in Nanjing

All research institutions in Nanjing

Research measures only: rankings here say nothing about teaching, admissions or student experience. Comparable institutions and collaboration partners are in the interactive view on the map.