Performance Analysis of Communications &amp;amp; Radar Coexistence in a Covert UWB OSA System

Surender, Shrawan C.; Narayanan, Ram M.; Das, Chita R.

doi:10.1109/glocom.2010.5683837

Cited by 48 publications

(18 citation statements)

References 10 publications

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“…There are two effective channels, (25) for the communications only channel and (26) for the mixed use channel. The communications power is split between the two channels [37], [39],…”

Section: Communications Water-filling Inner Boundmentioning

confidence: 99%

Inner Bounds on Performance of Radar and Communications Co-Existence

Chiriyath

Paul

Jacyna

et al. 2016

IEEE Trans. Signal Process.

333

219

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We investigate methods of co-existence between radar and communications systems. Each system typically considers the other system a source of interference. Consequently, the traditional solution is to isolate the two systems spectrally or spatially. By considering a cooperative radar and communications signaling scheme, we derive achievable bounds on performance for a receiver that observes communications and radar return in the same frequency allocation. We assume the radar and communications operations to be a single joint system. Bounds on performance of the joint system are measured in terms of data information rate for communications and a novel radar estimation information rate for the radar.Index Terms-Performance bounds, radar-communications co-existence. I. INTRODUCTIONT HERE is an ever increasing demand for spectrum and given the limit on resources, communications and radar systems are increasingly encouraged to share bandwidth. This can cause inter-system interference that degrades the performance of both systems. The standard solution is to separate (temporally, spatially or spectrally) the radar and communications systems. In this paper, we do not require this separation, and we explore the fundamental radar and communications co-existence performance bounds. An important contribution that enables this exploration is the novel parameterization of estimation information rate. The estimation information rate incorporates the insights of rate distortion theory but emphasizes the symmetry with the communications bound. In this paper, we refine and extend the performance bounds introduced in [1], as well as the additional bounds discussed in [2]. We also expand the results in [1] in greater detail. The two new inner bounds on performance discussed in this paper are the isolated sub-band inner bound and the optimal Fisher information inner bound.

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“…There are two effective channels, (25) for the communications only channel and (26) for the mixed use channel. The communications power is split between the two channels [37], [39],…”

Section: Communications Water-filling Inner Boundmentioning

confidence: 99%

Inner Bounds on Performance of Radar and Communications Co-Existence

Chiriyath

Paul

Jacyna

et al. 2016

IEEE Trans. Signal Process.

333

219

View full text Add to dashboard Cite

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“…In wideband radar applications such as the high-resolution and ultra wideband (UWB) noise radars, the radar system requires a large bandwidth. For example, in microwave systems and UWB noise radar, the waveform bandwidth is about 1 GHz, while in ultra high frequency (UHF) systems the waveform bandwidth can exceed 200 MHz [1]- [3]. In these applications, radar emissions will overlap with the spectrum allocated for communications and other wireless systems.…”

Section: Introductionmentioning

confidence: 99%

Spatio-Spectral Radar Beampattern Design for Coexistence With Wireless Communication Systems

Kang

Aldayel

Monga

et al. 2019

IEEE Trans. Aerosp. Electron. Syst.

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We address the problem of designing a transmit beampattern for multiple-input multiple-output (MIMO) radar considering co-existence with wireless communication systems. The designed beampattern is able to manage the transmit energy in spatial directions as well as in spectral frequency bands of interest by minimizing the deviation of the designed beampattern versus a desired one under a spectral constraint as well as the constant modulus constraint. While unconstrained beampattern design is straightforward, a key open challenge is jointly enforcing the spectral constraint in addition to the constant modulus constraint on the radar waveform. A new approach is proposed in our work, which involves solving a sequence of constrained quadratic programs such that constant modulus is achieved at convergence. Further, we show that each problem in the sequence has a closed form solution leading to analytical tractability. We evaluate the proposed beampattern with interference control (BIC) algorithm against the state-ofthe-art MIMO beampattern design techniques and show that BIC achieves closeness to an idealized beampattern along with desired spectral shaping.

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“…Other methodologies that have been applied to the radar-communications coexistence problem include signal sharing [10], [11] and waveform shaping [12]- [15]. In other research and applied systems radars based on communication system waveforms have been considered.…”

Section: A Backgroundmentioning

confidence: 99%

Cooperative radar and communications signaling: The estimation and information theory odd couple

Bliss

2014

2014 IEEE Radar Conference

188

119

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Abstract-We investigate cooperative radar and communications signaling. While each system typically considers the other system a source of interference, by considering the radar and communications operations to be a single joint system, the performance of both systems can, under certain conditions, be improved by the existence of the other. As an initial demonstration, we focus on the radar as relay scenario and present an approach denoted multiuser detection radar (MUDR). A novel joint estimation and information theoretic bound formulation is constructed for a receiver that observes communications and radar return in the same frequency allocation. The joint performance bound is presented in terms of the communication rate and the estimation rate of the system.

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Performance Analysis of Communications & Radar Coexistence in a Covert UWB OSA System

Cited by 48 publications

References 10 publications

Inner Bounds on Performance of Radar and Communications Co-Existence

Inner Bounds on Performance of Radar and Communications Co-Existence

Spatio-Spectral Radar Beampattern Design for Coexistence With Wireless Communication Systems

Cooperative radar and communications signaling: The estimation and information theory odd couple

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