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Sensors 2018, 18(4), 1228; https://doi.org/10.3390/s18041228

Trellis Tone Modulation Multiple-Access for Peer Discovery in D2D Networks

1
College of Information and Communication Engineering, Sungkyunkwan University, Suwon 16419, Korea
2
Samsung Electronics Co., Ltd., Suwon 16677, Korea
*
Author to whom correspondence should be addressed.
Received: 31 December 2017 / Revised: 9 April 2018 / Accepted: 10 April 2018 / Published: 17 April 2018
(This article belongs to the Special Issue Non-Orthogonal Multi-User Transmissions for 5G Networks)
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Abstract

In this paper, a new non-orthogonal multiple-access scheme, trellis tone modulation multiple-access (TTMMA), is proposed for peer discovery of distributed device-to-device (D2D) communication. The range and capacity of discovery are important performance metrics in peer discovery. The proposed trellis tone modulation uses single-tone transmission and achieves a long discovery range due to its low Peak-to-Average Power Ratio (PAPR). The TTMMA also exploits non-orthogonal resource assignment to increase the discovery capacity. For the multi-user detection of superposed multiple-access signals, a message-passing algorithm with supplementary schemes are proposed. With TTMMA and its message-passing demodulation, approximately 1.5 times the number of devices are discovered compared to the conventional frequency division multiple-access (FDMA)-based discovery. View Full-Text
Keywords: trellis tone modulation multiple-access (TTMMA); device-to-device (D2D); discovery; non-orthogonal multiple-access (NOMA); multi-user detection trellis tone modulation multiple-access (TTMMA); device-to-device (D2D); discovery; non-orthogonal multiple-access (NOMA); multi-user detection
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Lim, C.; Jang, M.; Kim, S.-H. Trellis Tone Modulation Multiple-Access for Peer Discovery in D2D Networks. Sensors 2018, 18, 1228.

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