Ultra-Wideband Communications using Hybrid Matched Filter Correlation Receivers

Tufvesson, Fredrik; Gezici, Sinan; Molisch, Andreas F.

doi:10.1109/twc.2006.04767

Cited by 33 publications

(5 citation statements)

References 28 publications

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“…Additionally, we found that the number of MPCs that is required for capturing 50% of the energy of the impulse response can be very high, up to 200. This serves as motivation to investigate suboptimum receiver structures that do not require one correlator per MPC, e.g., transmitted-reference schemes, [32], [33], [34], as well as noncoherent schemes. Also, the energy capture of partial Rake receivers, that match their fingers to the first arriving multipath components, will be highly affected in our measured NLOS scenarios, especially at larger distances.…”

Section: Discussionmentioning

confidence: 99%

A Measurement-Based Statistical Model for Industrial Ultra-Wideband Channels

Karedal

Wyne

Almers

et al. 2007

IEEE Trans. Wireless Commun.

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186

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Abstract-The results of three ultra-wideband (UWB) measurement campaigns conducted in two different industrial environments are presented. A frequency range of 3.1 − 10.6 or 3.1 − 5.5 GHz was measured using a vector network analyzer and a virtual array technique enabling the investigation of smallscale statistics. The results show that the energy arrives in clusters, and that the abundance of metallic scatterers present in the factory hall causes dense multipath scattering. The latter produces a small-scale fading that is mostly Rayleigh distributed; the only exception being the delay bin containing the line-ofsight component. The power delay profile can be modeled by a generalized Saleh-Valenzuela model, where different clusters have different ray power decay constants. It is also noted that the number of multipath components required to capture a majority of the energy is quite large. More than a hundred components can be needed to capture 50% of the total available energy.

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Section: Discussionmentioning

confidence: 99%

A Measurement-Based Statistical Model for Industrial Ultra-Wideband Channels

Karedal

Wyne

Almers

et al. 2007

IEEE Trans. Wireless Commun.

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186

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“…If the interference between the reference and data pulse is larger than the maximum delay, then processing gain is restricted to an extent. An analog correlator is needed for the time hopping sequence of the pulses [7].…”

Section: Hybrid Matched Filter Correlation Receiversmentioning

confidence: 99%

A Survey on Various Receivers for UWB Communication

Pauline¹,

Veeralakshmi²

2013

IOSR-JECE

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“…More specifically, the final expressions of the ABEP in (18) and (19), as well as P d and P fa in (21) and (22) can be still applied by taking into consideration that: i) (18) and (21) are conditioned upon the set of channel gains {α J k } NI k=1 , and ii) (19) and (22) need to be averaged over the channel gain of each jammer. Accordingly, for all performance metrics only the terms I i ,Ñ i in (13) need to be modified to account for multiple interfering jammers.…”

Section: A Framework To Compute the Abepmentioning

confidence: 99%

“…Moving from the first proposal of application to IR-UWB communication systems [3], several non-coherent receiver schemes are today available in the open technical literature (see, e.g., [11]- [35] and references therein), as well as many studies have been conducted to figure out their achievable performance over realistic propagation environments (see, e.g., [36]- [50] and references therein). In particular, in [18] the concept of detection and timing using dirty templates has been introduced; in [22] a hybrid detection method composed by a matched filter followed by an auto-correlation receiver has been considered for performance improvement; in [11] a Slightly Frequency-Shifted Reference (FSR) receiver has been introduced to avoid analog delay lines that afflict the efficient design at the IC-level of conventional TR methods; in [29] a Differential TR (DTR) scheme with chip-time processing has been designed and its performance analyzed; in [30] a pulse cluster transmission system has been conceived to reduce the length of the analog delay line and make its implementation affordable; in [12] the authors have moved from [3] and [11] to present a receiver scheme that avoids delay lines and transmits the reference signal over an orthogonal code; in [33], the scheme in [12] is further extended to the reference scenario with multiple-access interference and its design flexibility is studied. Moreover, analytical studies in [37], [38] have allowed us to fully understand the performance of TR receiver schemes over multipath fading channels further impaired by singletone Narrow-Band Interference (NBI).…”

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confidence: 99%

Performance Analysis and Optimization of $\hbox{T}_{\rm c}$-DTR IR-UWB Receivers Over Multipath Fading Channels With Tone Interference

Renzo

Leonardis

Graziosi

et al. 2011

IEEE Trans. Veh. Technol.

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In this paper, we analyze the performance of a particular class of Transmitted-Reference (TR) receivers for Impulse Radio (IR-) Ultra Wide Band (UWB) communication systems, which is called Chip-Time Differential Transmitted-Reference (Tc-DTR). The analysis aims at investigating the robustness of this receiver to single-and multi-tone Narrow-Band Interference (NBI), and at comparing its performance with other non-coherent receivers proposed in the literature. It is shown that the Tc-DTR scheme provides more degrees of freedom for performance optimization, and it is inherently more robust to NBI than other non-coherent receivers. More specifically, it is analytically proved that the performance improvement is due to the chip-time level differential encoding/decoding of the Direct Sequence (DS) code, and to an adequate design of DS code and average pulse repetition time. The analysis encompasses performance metrics that are useful for both data detection (i.e., Average Bit Error Probability, ABEP) and timing acquisition (i.e., False Alarm Probability, P fa , and Detection Probability, P d). Moving from the proposed semi-analytical framework, the optimal code design and system parameters are derived, and it is highlighted that the same optimization criterion can be applied to all performance metrics considered in this paper. Also, analytical frameworks and theoretical findings are substantiated via Monte Carlo simulations. Index Terms-Ultra wide band (UWB), impulse radio (IR), transmitted-reference (TR), tone interference, multipath fading channels, code design, performance analysis. I. INTRODUCTION T RANSMITTED-REFERENCE (TR) signaling schemes in conjunction with auto-correlation receiver architectures are well-known techniques to transmit and receive data over unknown fading channels (see, e.g.

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Ultra-Wideband Communications using Hybrid Matched Filter Correlation Receivers

Cited by 33 publications

References 28 publications

A Measurement-Based Statistical Model for Industrial Ultra-Wideband Channels

A Measurement-Based Statistical Model for Industrial Ultra-Wideband Channels

A Survey on Various Receivers for UWB Communication

Performance Analysis and Optimization of $\hbox{T}_{\rm c}$-DTR IR-UWB Receivers Over Multipath Fading Channels With Tone Interference

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