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

Rickard Nilsson, Ove Edfors, Magnus Sandell, Per Ola Börjesson

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceedingpeer-review

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Abstract

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
Original languageEnglish
Title of host publicationProc. IEEE International Conference on Personal Wireless Communications
PublisherIEEE - Institute of Electrical and Electronics Engineers Inc.
Pages71-74
Number of pages4
ISBN (Print)0-7803-4298-4
DOIs
Publication statusPublished - 1997
EventIEEE International Conference on Personal Wireless Communications, 1997 - Mumbai, India
Duration: 1997 Dec 171997 Dec 19

Conference

ConferenceIEEE International Conference on Personal Wireless Communications, 1997
Country/TerritoryIndia
CityMumbai
Period1997/12/171997/12/19

Subject classification (UKÄ)

  • Electrical Engineering, Electronic Engineering, Information Engineering

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