Index Coded PSK Modulation for Prioritized Receivers over Rayleigh Fading Channels

Paul, A and Rajan, BS (2023) Index Coded PSK Modulation for Prioritized Receivers over Rayleigh Fading Channels. In: 97th IEEE Vehicular Technology Conference, VTC 2023-Spring, 20-23 June 2023, Florence, Italy.

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Abstract

Noisy index coding problem over single-input single-output (SISO) additive white Gaussian noise (AWGN) broadcast channel has been studied in 6. Further the performance of high priority receivers has been improved by using rotated PSK constellation in 7 for AWGN broadcast channel. In this work, we consider noisy index coding problem in which the source transmits symbols over a SISO Rayleigh fading broadcast channel. We show that even for transmission over Rayleigh fading channel minimum inter-set distance, as seen by the receiver plays a crucial role in its ML decoding performance unlike classical fading cases. For improving the performance of high priority receivers for a chosen index code of length N we are transmitting N bits over Rayleigh fading channel using a rotated M-PSK (M = 2N) constellation where half of the signal points have been rotated in such a way to maximize the minimum inter-set distance. Additionally, we account for the multiplicity of signal pairs along with inter-set distance as a factor to achieve better ML decoding performance for some index coding problems with rotated constellation for prioritized receivers over fading channel. © 2023 IEEE.

Item Type:	Conference Paper
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; Decoding; Fading channels; Gaussian noise (electronic); Phase shift keying; Rotation; Signal receivers; White noise, Additive White Gaussian noise; Broadcast channels; Coding problems; Fading broadcast channel; Index coding; Noisy index coding; Rayleigh-fading channel; Set distances; Side information; Single-input/ single outputs, Rayleigh fading
Department/Centre:	Division of Electrical Sciences > Electrical Communication Engineering
Date Deposited:	28 Oct 2023 08:34
Last Modified:	28 Oct 2023 08:34
URI:	https://eprints.iisc.ac.in/id/eprint/83157

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