Low complexity zeroforcing precoder design under per-antenna power constraints

Jinyoung Jang, Sang Woon Jeon, Hyukjin Chae, Hyun Su Cha, Dong Ku Kim

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


The K-user multiple-input single-output broadcast channel is considered under per-antenna power constraints, i.e., each transmit antenna must satisfy its own power constraint. A low complexity zeroforcing (ZF) precoder is proposed when the number of transmit antennas M is greater than K. The proposed precoder design significantly reduces computational complexity for the precoder construction while attaining the sum spectral efficiency close to that achievable by the optimal ZF precoder.

Original languageEnglish
Article number7104128
Pages (from-to)1556-1559
Number of pages4
JournalIEEE Communications Letters
Issue number9
Publication statusPublished - 2015 Sept 1

Bibliographical note

Publisher Copyright:
© 2015 IEEE.

All Science Journal Classification (ASJC) codes

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


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