We propose the deployment of millimeter-wave MIMO for joint vehicular high speed communication and resolution radar sensing. To cope with significant hardware complexity, we consider use low analog-to-digital converters (ADC) while maintaining a separate radio-frequency chain per antenna. The system performance is analyzed in terms Cramér Rao lower bound achievable data rate, compared to ideal case infinite ADCs. Additionally, study impact quantization on trade-off between these metrics....

Improving the accuracy of position and velocity estimates from single frequency Global Navigation Satellite System (GNSS) receivers is paramount importance due to their wide spread role in new emerging real time applications requiring higher levels accuracy. Single receiver has only two independent measurements: code delay carrier phase measurements. Pseudorange measurements are unambiguous but noisy while those precise suffer integer ambiguity problem. In order obtain high without...

In this paper, we characterize the system level effect of radar interference in terms probability missed detection and false alarm for frequency modulated continuous wave (FMCW) sensors a highway type automotive setting. Our results show that is significantly affected by interference, particularly at larger distances. We also propose central agent uses existing communication infrastructure to jointly assign different FMCW parameters, such as slope directions carrier offsets, units operating...

Traditional approach towards precise point positioning in a single frequency global navigation satellite system (GNSS) receiver is to combine the but ambiguous carrier phase measurements with noisy unambiguous code delay get better estimate of pseudorange dynamics. However, ionosphere divergence error and cycle slips limit efficacy this especially harsh propagation scenarios. We propose new that utilizes only same level accuracy as from traditional approach. The proposed based on extracting...

High-resolution fully digital transceivers are infeasible at millimeter-wave (mmWave) due to their increased power consumption, cost, and hardware complexity. The use of low-resolution converters is one possible solution realize architectures mmWave. In this paper, we consider a setting in which base station with constant envelope quantized (CEQ) digital-to-analog on each radio frequency chain communicates multiple single antenna users individual...

In this paper, we develop a framework for using the dedicated short range communication (DSRC) waveform purposes of automotive radar. Our approach operates on frequency domain channel estimates generated by OFDM physical layer used in DSRC. We consider two path model, with first cluster corresponding to direct signal interference and second reflected from target. The target ranging direction arrival information is encoded parameters path. estimate least squares matching pursuit algorithm...

Millimeter wave is widely used for consumer radar applications like driver assistance systems in automated vehicles and gesture recognition. To cope with the increased hardware complexity, higher costs power consumption of wideband at millimeter frequencies, we propose a fully digital architecture low resolution analog-to-digital converters (ADCs) on each radio-frequency chain. The effect ADCs parameter estimation characterized by Cramér-Rao bound under proposed constraints. Prior work has...

In Global navigation Satellite System (GNSS) based positioning, the use of carrier phase measurements is widening day by due to their preciseness as compared code delay measurements. Although, are precise but they suffer from anomalies such cycle slips and receiver clock jumps in addition other error sources satellite-user dynamics atmospheric delays. On one end, detection exclusion these critical for accurate reliable positioning. it very difficult detect especially dynamic environment...

The increased power consumption of high-resolution data converters at higher carrier frequencies and larger bandwidths is becoming a bottleneck for communication systems. In this paper, we consider fully digital base station equipped with 1-bit analog-to-digital (in uplink) digital-to-analog downlink) on each radio frequency chain. communicates multiple single antenna users individual SINR constraints. We first establish the uplink downlink duality principle under hardware constraints an...

Thin interfacial insulators made of materials such as Lithium Fluoride or various oxide compositions have been shown to improve open circuit voltage and fill factor in quantum dot solar cells primarily due the lowering surface recombination leakage prevention metal penetration into active layer. In this paper, we highlight that, besides above mentioned benefits, thin barrier could also significantly lower dark current hence provide an additional performance improvement when is dominant. We...

In this paper, we characterize the effect of radar-to-radar interference in a system setting terms probability missed detection for two common driving scenarios: Highway traffic and 4-way intersection. We focus on frequency modulated continuous wave (FMCW) phase (PMCW) radar waveforms try to answer question: Is one waveform inherently better than other automotive applications? contrast most results available published literature, show that PMCW does not have an advantage over FMCW setting....

Millimeter-wave is widely used for consumer radar applications like driver assistance systems in automated vehicles and gesture recognition touch-free interfaces. To cope with the increased hardware complexity, higher costs power consumption of wideband at millimeter-wave frequencies, we propose a fully digital architecture low-resolution analog-to-digital converters (ADCs) on each radio-frequency chain. The effect ADCs parameter estimation characterized by Cramér-Rao bound (CRB) under...

The increased power consumption of high-resolution data converters at higher carrier frequencies and larger band-widths is becoming a bottleneck for communication systems. In this paper, we consider fully digital base station equipped with 1-bit analog-to-digital (in uplink) digital-to-analog downlink) on each radio frequency chain. communicates multiple single antenna users individual SINR constraints. We present linear solution to the multi-user downlink beamforming problem based uplink...

We consider layered decode-forward (DF) cooperation in a relay-aided wireless multicast network. Splitting the source-message into two equal layers, we provide unequal power allocation to individual layers through simple mapping operation on QAM constellation. The layering process thus allows destinations partially recover message from source's transmissions. At relay, propose multiplexed-coded approach that, with single transmission, caters for disparity number of decoded at different...

We consider layered decode-forward (DF) cooperation in a relay-aided wireless multicast network. Splitting the source-message into two equal layers, we provide unequal power allocation to individual layers through simple mapping operation on QAM constellation. The layering process thus allows destinations partially recover message from source's transmissions. At relay, propose multiplexed-coded approach that, with single transmission, caters for disparity number of decoded at different...

We present a deep learning model for simultaneous range and direction of arrival estimation frequency modulated continuous waveform radars using 1-bit analog-to-digital converters. Standard fast Fourier transform based processing signals can suffer from various signal distortions. To combat this, we train neural network on vectorized covariance matrices simulated targets test it under realistic settings in terms signal-to-noise ratio computation. also off-grid not seen during training...

We design and implement a practical layered multiplexed-coded decode-forward (LMDF) relaying strategy for wide-band wireless multicast network. The proposed LMDF scheme relies on layering at the source, with individual layers provided unequal power allocation through simple bit-mapping operation to quadrature amplitude modulation constellations. At relay, utilizes approach that, single transmission, caters disparity in number of decoded different destinations. Under setup hard-decision...

The sparse nature of the ranging and spatial angle parameter space has been exploited by many radar estimation algorithms in literature. We note that real world reflections are not sporadically typically exhibit smooth variation effects with non-zero entries occurring clusters. In this paper, we explicitly model additional structural information into our algorithm propose a non-convex regularization linear observation corresponding to dictionary representation image. proposed encourages...

The increased power consumption of high-resolution data converters at higher carrier frequencies and larger bandwidths is becoming a bottleneck for communication systems. In this paper, we consider fully digital base station equipped with 1-bit analog-to-digital (in uplink) digital-to-analog downlink) on each radio frequency chain. communicates multiple single antenna users individual SINR constraints. We first establish the uplink downlink duality principle under hardware constraints an...

High-resolution fully digital transceivers are infeasible at millimeter-wave (mmWave) due to their increased power consumption, cost, and hardware complexity. The use of low-resolution converters is one possible solution realize architectures mmWave. In this paper, we consider a setting in which base station with constant envelope quantized (CEQ) digital-to-analog on each radio frequency chain communicates multiple single antenna users individual...