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Pilot Insertion with Index Modulation for OFDM-Based Vehicular Communications

Abstract: 

Orthogonal frequency division multiplexing (OFDM) is widely considered as a promising technique for vehicular communications. In current OFDM-based vehicular communications systems, a portion of tones are dedicated for pilot symbols and transmitted along with the data-bearing tones to estimate residual frequency error. However, these pilot symbols themselves do not carry any information, thus inevitably degrading the system spectral efficiency (SE). Motivated by the concept of index modulation (IM), in this paper, we propose a novel pilot insertion technique to enhance the SE, in which the pilot positions are selected according to extra information bits. Specifically, two different types of pilot position selection (PPS) schemes, which result in equal-spaced and unequal-spaced, are studied, and the corresponding pilot position detection (PPD) methods are designed. Computer simulation results corroborate the advantages of the proposed technique in terms of bit error rate (BER).

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Paper Details

Authors:
Qiang Li, Miaowen Wen, Yuekai Zhang, Jun Li, Fangjiong Chen, and Fei Ji
Submitted On:
21 November 2018 - 11:54am
Short Link:
Type:
Presentation Slides
Event:
Paper Code:
1036
Document Year:
2018
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Pilot Insertion with Index Modulation for OFDM-Based Vehicular Communications.pdf

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[1] Qiang Li, Miaowen Wen, Yuekai Zhang, Jun Li, Fangjiong Chen, and Fei Ji, "Pilot Insertion with Index Modulation for OFDM-Based Vehicular Communications", IEEE SigPort, 2018. [Online]. Available: http://sigport.org/3703. Accessed: Aug. 25, 2019.
@article{3703-18,
url = {http://sigport.org/3703},
author = {Qiang Li; Miaowen Wen; Yuekai Zhang; Jun Li; Fangjiong Chen; and Fei Ji },
publisher = {IEEE SigPort},
title = {Pilot Insertion with Index Modulation for OFDM-Based Vehicular Communications},
year = {2018} }
TY - EJOUR
T1 - Pilot Insertion with Index Modulation for OFDM-Based Vehicular Communications
AU - Qiang Li; Miaowen Wen; Yuekai Zhang; Jun Li; Fangjiong Chen; and Fei Ji
PY - 2018
PB - IEEE SigPort
UR - http://sigport.org/3703
ER -
Qiang Li, Miaowen Wen, Yuekai Zhang, Jun Li, Fangjiong Chen, and Fei Ji. (2018). Pilot Insertion with Index Modulation for OFDM-Based Vehicular Communications. IEEE SigPort. http://sigport.org/3703
Qiang Li, Miaowen Wen, Yuekai Zhang, Jun Li, Fangjiong Chen, and Fei Ji, 2018. Pilot Insertion with Index Modulation for OFDM-Based Vehicular Communications. Available at: http://sigport.org/3703.
Qiang Li, Miaowen Wen, Yuekai Zhang, Jun Li, Fangjiong Chen, and Fei Ji. (2018). "Pilot Insertion with Index Modulation for OFDM-Based Vehicular Communications." Web.
1. Qiang Li, Miaowen Wen, Yuekai Zhang, Jun Li, Fangjiong Chen, and Fei Ji. Pilot Insertion with Index Modulation for OFDM-Based Vehicular Communications [Internet]. IEEE SigPort; 2018. Available from : http://sigport.org/3703