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Unresolvable Identifier

arXiv:2605.16129 · detector doi_compliance · cross_source · 2026-05-19 18:41:04.942292+00:00

critical doi_compliance unresolvable_identifier

Identifier '10.1109/twc.2015.2416656' is syntactically valid but the DOI registry (doi.org) returned 404, and Crossref / OpenAlex / internal corpus also have no record. The cited work could not be located through any authoritative source.

Paper page Integrity report arXiv Try DOI

Evidence text

• Björnson, E., Sanguinetti, L., Hoydis, J., & Debbah, M. (2015). Optimal design of energy-efficient multi-user MIMO systems: Is massive MIMO the answer? IEEE Transactions on Wireless Communications, 14(6), 3059–3075. https://doi.org/10.1109/TWC.2015.2416656 • Chen, S., Zhang, Y., & Wu, Z. (2022). Intelligent resource orchestration for cell-free massive MIMO in IoT: A deep reinforcement learning approach. IEEE Internet of Things Journal, 9(15), 13566–13577. https://doi.org/10.1109/JIOT.2022.3150302 • Ding, Z., Liu, Y., Choi, J., Elkashlan, M., & Poor, H. V. (2017). Application of Non- Orthogonal Multiple Access in LTE and 5G Networks. IEEE Communications Magazine, 55(2), 185–191. https://doi.org/10.1109/MCOM.2017.1600657CM • Hassan, M., Ali, M. S., & Rahman, M. A. (2024). Integration of NOMA with massive MIMO for large-scale IoT: Opportunities and challenges. IEEE Access, 12, 55634– 55650. https://doi.org/10.1109/ACCESS.2024.3330298 • Jose, J., Ashikhmin, A., Marzetta, T. L., & Vishwanath, S. (2011). Pilot contamination and precoding in multi-cell TDD systems. IEEE Transactions on Wireless Communications, 10(8), 2640–2651. https://doi.org/10.1109/TWC.2011.061411.101129 • Liu, T., Zhang, J., & Zhao, Y. (2023). Secure beamforming design for IoT devices in massive MIMO systems. IEEE Transactions on Information Forensics and Security, 18, 1027–1039. https://doi.org/10.1109/TIFS.2023.3265579 • Lu, L., Li, G. Y., Swindlehurst, A. L., Ashikhmin, A., & Zhang, R. (2014). An overview o

Evidence payload

{
  "arxiv_id": null,
  "checked_sources": [
    "crossref_by_doi",
    "openalex_by_doi",
    "doi_org_head"
  ],
  "doi": "10.1109/twc.2015.2416656",
  "raw_excerpt": "\u2022 Bj\u00f6rnson, E., Sanguinetti, L., Hoydis, J., & Debbah, M. (2015). Optimal design of energy-efficient multi-user MIMO systems: Is massive MIMO the answer? IEEE Transactions on Wireless Communications, 14(6), 3059\u20133075. https://doi.org/10.1109/TWC.2015.2416656 \u2022 Chen, S., Zhang, Y., & Wu, Z. (2022). Intelligent resource orchestration for cell-free massive MIMO in IoT: A deep reinforcement learning a",
  "ref_index": 1,
  "verdict_class": "cross_source"
}