Partial overlapped time-shifted pilots for massive MIMO systems

Wenson Chang, Yun Kuei Hua, Shu Fong Liao

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)


This letter proposes a partial-time-shifted pilot scheme to find a better tradeoff between the user accommodation and orthogonality of pilots for the massive multiple-input multiple-output system. To this end, the pilot symbols rather than the pilot sequences are applied. In addition, the neighboring cells are allowed to transmit the pilot signals using the overlapped symbol periods. Despite the stronger interference, the larger user accommodation as well as the near-far effect incurred by using the pilot symbols can contribute to the higher sum transmission rates for both the uplink and downlink cases.

Original languageEnglish
Article number7999161
Pages (from-to)2480-2483
Number of pages4
JournalIEEE Communications Letters
Issue number11
Publication statusPublished - 2017 Nov

All Science Journal Classification (ASJC) codes

  • Modelling and Simulation
  • Computer Science Applications
  • Electrical and Electronic Engineering


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