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An analysis of two-dimensional pilot-symbol assisted modulation for OFDM

Publiceringsår: 1997
Språk: Engelska
Sidor: 71-74
Publikation/Tidskrift/Serie: Proc. IEEE International Conference on Personal Wireless Communications
Dokumenttyp: Konferensbidrag
Förlag: IEEE


In this paper we analyze two-dimensional (2D) pilot-symbol assisted modulation (PSAM) for wireless orthogonal frequency-division multiplexing (OFDM). 2D-PSAM has been suggested for wireless OFDM by several authors and is included in a preliminary draft of the standard for European digital video broadcast. We generalize the analysis of single-carrier PSAM to the 2D time-frequency lattice of OFDM. We analyze 2D-PSAM for two different channel estimators: one with good performance and high complexity and one suboptimal with low complexity. We verify that a good rule of thumb is to place the pilots at least as twice as close, in time and frequency, as required by the 2D sampling theorem



  • Electrical Engineering, Electronic Engineering, Information Engineering


IEEE International Conference on Personal Wireless Communications
Mumbai, India
  • Radio Systems
© 1997 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
  • ISBN: 0-7803-4298-4

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