Journal profile · Engineering, Electrical & Electronic

IEEE Transactions on Parallel and Distributed Systems

ISSN 1045-9219 · eISSN 1558-2183 · IEEE Computer Society · UNITED STATES · Monthly

IEEE Transactions on Parallel and Distributed Systems: CAS Zone 2 · Computer Science (2025 upgraded edition, Top journal); impact factor 5.66; hybrid open access; APC about USD 2,645; review about 7.5 months (community reports); community-reported acceptance: about 25%; 202 articles in 2025; indexed in SCIE and Scopus.

Impact factor5.66Latest value listed by LetPub
CAS zoneZone 2 · Computer Science2025 upgraded edition, major category · Top journal · 2026 Xinrui edition Zone 2 · Computer Science
Review timeabout 7.5 monthsCommunity average
APCUSD 2,645Hybrid journal: charged only for open-access articles
Acceptanceabout 25%Community average
Articles per year2022025 · OpenAlex count

Scope

Aims, scope and focus

IEEE Transactions on Parallel and Distributed Systems is published by IEEE Computer Society and is in Zone 2 of Computer Science in the CAS Journal Ranking (2025 upgraded edition, Top journal). By OpenAlex counts of its recent articles, its largest topics are Parallel Computing and Optimization Techniques, Interconnection Networks and Systems and Cloud Computing and Resource Management, together about 33.1% of its articles. Its main subfields are Computer Networks and Communications. (generated from OpenAlex topic counts and CAS ranking data)

IEEE Transactions on Parallel and Distributed Systems (TPDS) is published monthly. It publishes a range of papers, comments on previously published papers, and survey articles that deal with the parallel and distributed systems research areas of current importance to our readers. Particular areas of interest include, but are not limited to: a) Parallel and distributed algorithms, focusing on topics such as: models of computation; numerical, combinatorial, and data-intensive parallel algorithms, scalability of algorithms and data structures for parallel and distributed systems, communication and synchronization protocols, network algorithms, scheduling, and load balancing. b) Applications of parallel and distributed computing, including computational and data-enabled science and engineering, big data applications, parallel crowd sourcing, large-scale social network analysis, management of big data, cloud and grid computing, scientific and biomedical applications, mobile computing, and cyber-physical systems. c) Parallel and distributed architectures, including architectures for instruction-level and thread-level parallelism; design, analysis, implementation, fault resilience and performance measurements of multiple-processor systems; multicore processors, heterogeneous many-core systems; petascale and exascale systems designs; novel big data architectures; special purpose architectures, including graphics processors, signal processors, network processors, media accelerators, and other special purpose processors and accelerators; impact of technology on architecture; network and interconnect architectures; parallel I/O and storage systems; architecture of the memory hierarchy; power-efficient and green computing architectures; dependable architectures; and performance modeling and evaluation. d) Parallel and distributed software, including parallel and multicore programming languages and compilers, runtime systems, operating systems, Internet computing and web services, resource management including green computing, middleware for grids, clouds, and data centers, libraries, performance modeling and evaluation, parallel programming paradigms, and programming environments and tools.

Source: LetPub

Research area (LetPub): Engineering, Electrical & Electronic

Main research topics OpenAlex counts of recent articles; shares are approximate

  1. Parallel Computing and Optimization TechniquesComputer Science14.2%
  2. Interconnection Networks and SystemsComputer Science9.9%
  3. Cloud Computing and Resource ManagementComputer Science9%
  4. Advanced Data Storage TechnologiesComputer Science7.9%
  5. Distributed and Parallel Computing SystemsComputer Science7.6%
  6. Distributed systems and fault toleranceComputer Science7.2%
  7. Caching and Content DeliveryComputer Science6.4%
  8. Peer-to-Peer Network TechnologiesComputer Science3.4%

Rankings & indexing

CAS ranking and database indexing

CAS Journal Ranking

CAS Journal Ranking, upgraded edition (March 2025)Computer Science Zone 2
LevelCategoryZone
MajorComputer ScienceZone 2
MinorComputer Science, Theory & MethodsZone 1
MinorEngineering, Electrical & ElectronicZone 2

Top journal: yesReview journal: no

CAS Xinrui Journal Ranking (March 2026)Computer Science Zone 2
LevelCategoryZone
MajorComputer ScienceZone 2
MinorComputer Science, Theory & MethodsZone 2
MinorEngineering, Electrical & ElectronicZone 2

Top journal: noReview journal: not marked

CAS Journal Ranking, previous upgraded edition (December 2023)Computer Science Zone 2
LevelCategoryZone
MajorComputer ScienceZone 2
MinorComputer Science, Theory & MethodsZone 1
MinorEngineering, Electrical & ElectronicZone 2

Top journal: yesReview journal: no

Database indexing

SCIEScopusLetPub

International journal early-warning lists: not listed in any editionLetPub

Editions, and major and minor categories, are shown separately and never merged into one zone; check which edition your institution uses before you submit or report.

Metrics

Impact metrics and publication volume

Impact

Impact factor
5.66LetPub ·
CiteScore 2026-06
15.2LetPub ·
SJR 2026-06
1.87LetPub ·
SNIP 2026-06
2.29LetPub ·
h-index
120LetPub ·
h-index
203OpenAlex ·
i10-index
4,241OpenAlex ·
2-year mean citedness
4.68OpenAlex ·
Self-citation rate
3.4%LetPub ·
Share of gold OA articles
6.06%LetPub ·

Volume

Articles per year
190LetPub ·

Articles by year OpenAlex count · 6,610 in total · the current year is incomplete

YearArticlesOpen accessCitations
20261362442
202520241588
2024177321,778
2023203454,440
2022220614,790
202131610911,091

Sources count differently and were observed at different times, so each source's own value is kept; "publisher" marks figures from the journal's website.

Review & acceptance

Review time and acceptance

Average review time (community reports)
about 7.5 monthsLetPub ·
Average acceptance (community reports)
25%LetPub ·

Community reports come from authors' own submissions (confidence 0.5) and are not a promise from the journal; for publisher figures, the journal's own definitions apply.

Fees & open access

APC and open-access policy

Hybrid open accessLetPub

A subscription journal in which authors can pay to publish their article open access.

SourceAPCFee waiverLicenseObserved
OpenAlexUSD 2,645——

A hybrid journal charges the APC only when the author chooses open access; publishing under the subscription model is usually free.

The journal's website is authoritative for fees; sources were observed at different times and each keeps its own value, without averaging.

Profile

Publication details and official links

Publisher
IEEE Computer Society
Country or region
UNITED STATES
Language
English
Frequency
Monthly
ISSN
1045-9219
Electronic ISSN
1558-2183
Official links

FAQ

Frequently asked questions about IEEE Transactions on Parallel and Distributed Systems

What CAS zone is IEEE Transactions on Parallel and Distributed Systems in?

In the 2025 upgraded edition of the CAS Journal Ranking, IEEE Transactions on Parallel and Distributed Systems is in Zone 2 of Computer Science, and in Zone 1 of the minor category Computer Science, Theory & Methods / Engineering, Electrical & Electronic; it is a Top journal. In the 2026 Xinrui edition it is in Zone 2 of Computer Science. Zones from different editions, and from major and minor categories, are not interchangeable.

What is the impact factor of IEEE Transactions on Parallel and Distributed Systems?

The latest impact factor listed by LetPub is 5.66; CiteScore 15.2, h-index 203.

How long does peer review take at IEEE Transactions on Parallel and Distributed Systems?

Authors report an average review time of about 7.5 months; the community-reported acceptance is “about 25%”. Article statistics cover accepted papers only, publisher figures follow the journal's own definitions, and community reports come from authors' own submissions; none is a promise from the journal.

Which databases index IEEE Transactions on Parallel and Distributed Systems?

According to LetPub and DOAJ records, IEEE Transactions on Parallel and Distributed Systems is indexed in SCIE and Scopus.

Is IEEE Transactions on Parallel and Distributed Systems open access, and what is the APC?

IEEE Transactions on Parallel and Distributed Systems is a hybrid journal. For open-access publication: APC about USD 2,645.

Sources and updates

The facts on this page come from LetPub, OpenAlex; every figure is tagged with its source and the date it was observed, and conflicting values are kept per source. LetPub source page: view ↗ (archived 2026-08-25). Last updated: .