In this paper, we investigate the design of multiple orthogonal frequency-division multiplexing (OFDM) waveforms for joint radar and communications applications. The design objectives are to simultaneously minimize the integrated sidelobe level (ISL) and the peak-to-mean envelope power ratio (PMEPR) of the OFDM wavefor...
Xiao-Nan Xu, Yong-Zhe Li, Ran Tao et al.· IEEE Transactions on Signal...· 0 citations
This paper characterizes FM-OFDM as a sensing waveform based on its bandwidth, ambiguity function, sidelobe behavior, and Doppler estimation capability, and shows that its data dependent sidelobe floor is incoherent and decreases through across frame integration, whereas the corresponding CP-OFDM floor remains unchange...
This paper analyzes a multi-input multi-output (MIMO)-OFDM-ISAC system in which multiple data streams jointly illuminate a sensing target, and derives second-order moment expressions for the RDM under matched filtering (MF) and reciprocal filtering (RF), and uses them to characterize the dynamic range (DR).
This paper proposes a novel multi-user multiple-input multiple-output orthogonal frequency-division multiplexing (MU-MIMO-OFDM) based integrated sensing and communication (ISAC) framework. By partitioning the time-frequency resource grid into sub-blocks, the architecture enables 4D sensing (range, velocity, azimuth, el...
Kyung In Lee, Ju Hyeon Kim, Dong In Kim et al.· IEEE Transactions on Wireles...· 0 citations
Orthogonal frequency-division multiplexing (OFDM) integrated sensing and communication (ISAC) reuses the entire time-frequency frame, including pilots and data payloads, for radar sensing. The random data payload, however, reduces the sensing dynamic range and degrades the target detection and parameter estimation perf...
Don-Lin Yang, Kai-Tao Meng, Fan Liu et al.· 0 citations
Fifth-generation (5G) communication systems employ orthogonal demodulation reference signals to eliminate pilot contamination and user interference, resulting in a significant overhead for reserving resource elements in the time-frequency grid. 5G technologies rely on orthogonal frequency division multiplexing (OFDM) a...
Rahul Makkar, Divyang Rawal, Vijay Kumar Chakka et al.· IEEE International Symposium...· 0 citations
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