Tom, AE and Rajan, BS (2022) Index Coded PSK Modulation with Rotated Constellation for Prioritized Receivers. In: 95th IEEE Vehicular Technology Conference - Spring, VTC 2022-Spring, 19 - 22 June 2022, Helsinki.
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Abstract
Noisy index coding problem over a single-input single-output additive white Gaussian noise (AWGN) broadcast channel has been studied in 4-6. For a given index coding problem with an order of priority among the receivers and a chosen index code of length N results have been reported only for symmetric PSK modulation. In this work we improve the performance of high priority receivers by transmitting the N bits using a rotated M-PSK (M=2 {N}) constellation where half the number of points are rotated by an angle theta, where 0leqthetalt 2pi/M. The results in 4-6 correspond to the case theta=0. We show that the probability of error performance for the high priority receivers improve as theta increases and simultaneously that of the low priority receivers deteriorate. As a result the performance of some of the receivers in the middle of the priority order may remain unchanged. © 2022 IEEE.
Item Type: | Conference Paper |
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Publication: | IEEE Vehicular Technology Conference |
Publisher: | Institute of Electrical and Electronics Engineers Inc. |
Additional Information: | The copyright for this article belongs to the Institute of Electrical and Electronics Engineers Inc. |
Keywords: | Broadcasting; Codes (symbols); Gaussian noise (electronic); Phase shift keying; Rotation; Signal receivers, Additive White Gaussian noise; Additive white gaussian noise broadcast channel; Broadcast channels; Coding problems; Index coding; Noisy index coding; Performance; PSK modulation; Rotated constellation; Side information, White noise |
Department/Centre: | Division of Electrical Sciences > Electrical Communication Engineering |
Date Deposited: | 06 Oct 2022 11:13 |
Last Modified: | 06 Oct 2022 11:13 |
URI: | https://eprints.iisc.ac.in/id/eprint/77261 |
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