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Complementary sequence encoding for 1D and 2D constant-modulus OFDM transmission at millimeter wave frequencies

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Citation Author(s):
Kyle Willstatter
Kyle Willstatter, Michael D. Zoltowski
Submitted by:
Kyle Willstatter
Last updated:
8 May 2019 - 11:58am
Document Type:
Poster
Document Year:
2019
Event:
ICASSP 2019
Presenters:
Michael D. Zoltowski
Paper Code:
SPCOM-P5.4
Categories:
MIMO Communications and Signal Processing
 

This paper develops a method for constructing an OFDM signal from a pair of complementary sequences so that the resulting signal is constant-modulus. A recursive method of constructing complementary sequences is developed such that the length of the signal grows linearly with the number of information symbols encoded. The constant-modulus property is exploited at each stage of the backwards symbol-decoding iteration through simple means to progressively reduce noise. For diversity comparing purposes, the new scheme is compared in symbol and frame error rates to m-PSK transmission with time-diversity in AWGN. The constant-modulus signal construction is then extended to two dimensions for the motivating application where we expect this work to have the greatest impact: massive MIMO at mmWave frequencies.

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