A Dual-Function Radar Communication System Using Index Modulation

Tianyao Huang, Xingyu Xu, Yimin Liu, Nir Shlezinger, Yonina C. Eldar

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

7 Scopus citations

Abstract

Dual-function radar communication (DFRC) systems implement both sensing and communication using the same hardware. Such schemes are typically more efficient in terms of size, power, and cost, over using distinct radar and communication systems. Since these functionalities share resources such as spectrum, power, and antennas, DFRC methods typically entail some degradation in both radar and communication performance. In this work we propose a multi-carrier agile phased array radar (MAPAR) DFRC, which extends the previously proposed frequency agile radar and multi-carrier agile radar to a phased array antenna operating with constant modulus waveforms. The inherent spatial and spectral randomness of the proposed MAPAR is utilized to convey digital messages in the form of index modulation. The resulting communication scheme naturally coexists with the radar functionality, and thus does not come at the cost of reduced radar performance. We carry out a theoretical analysis of the radar and communication performances, quantifying the radar beam pattern and the achievable bit rate. Our numerical results demonstrate that the proposed MAPAR yields an effective range-spatial beam pattern, similar to that achievable with traditional phased array radar, while its communications bit rate is comparable to utilizing an independent communication module.

Original languageEnglish
Title of host publication2019 IEEE 20th International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2019
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781538665282
DOIs
StatePublished - 1 Jul 2019
Externally publishedYes
Event20th IEEE International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2019 - Cannes, France
Duration: 2 Jul 20195 Jul 2019

Publication series

NameIEEE Workshop on Signal Processing Advances in Wireless Communications, SPAWC
Volume2019-July

Conference

Conference20th IEEE International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2019
Country/TerritoryFrance
CityCannes
Period2/07/195/07/19

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