Performance of UWB systems in the presence of severe multipath and narrowband interference

Lai, Zhiguo; Joshi, Hem Dutt; Goeckel, Dennis; Gupta, Das; Mathew, Anu

doi:10.1109/icuwb.2008.4653290

Cited by 8 publications

(8 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Therefore, the criteria can be different for different channel models and signaling schemes. 12 Recall that in an MA scenario, each link is identified by a unique frequency offset f r = c/T b . If one employs the criterion ≤ 0.05, one can solve that for a data rate of 10 kbps in an office environment (τ rms ≈ 100 ns), one can choose from a total of 40 available frequency offsets [23, p. 126].…”

Section: Effect Of Delay Dispersionmentioning

confidence: 99%

See 1 more Smart Citation

A Frequency Offset Transmit Reference System in Dense Multipath Environments: Propagation Effects and Design Considerations

Bilal

Meijerink

Bentum

2020

IEEE Trans. Wireless Commun.

View full text Add to dashboard Cite

Frequency offset transmit reference (FoTR)-a noncoherent spread spectrum technique-is considered in dense multipath fading environments, in the context of wideband communication. The interplay between system parameters and propagation effects is investigated. Analytical relations between key design parameters and the channel delay spread are derived, which provide a framework for determining reasonable system parameters that optimize the performance. An approximated closed-form expression for the outage probability is also obtained, which is shown to be fairly accurate for low outage probabilities. It is shown that FoTR suffers significantly from noise-enhancement, but, is nonetheless, robust against frequency-selective fading. A large value of frequency offset can significantly deteriorate the performance, particularly in environments with large channel delay spreads. This restricts the maximum data rate as well as the multiple-access capability of the scheme. Despite the limitations, FoTR can be a useful communication scheme for low data rate sensor networks deployed in dense multipath environments, particularly where the design demands a simple receiver and a low outage probability.

show abstract

Section: Effect Of Delay Dispersionmentioning

confidence: 99%

“…Adhering to this guideline, different frequency offsets can be used for different communication links to enable MA in the network [11]. In [10], [12], FoTR-UWB technique was studied in a multipath fading environment using standard IEEE UWB channel models. In [10], the bit-errorrate (BER) expression was derived, conditioned on a channel realization.…”

mentioning

confidence: 99%

A Frequency Offset Transmit Reference System in Dense Multipath Environments: Propagation Effects and Design Considerations

Bilal

Meijerink

Bentum

2020

IEEE Trans. Wireless Commun.

View full text Add to dashboard Cite

show abstract

“…Performance studies in [15], [18]- [21] have clearly shown that the performance of these receivers get significantly worse in the presence of interference, and have also pointed out that the performance gain offered by a receiver in a multipath environment might disappear in the presence of interference [18]. These results have motivated significant research efforts to develop robust interference cancelation mechanisms to improve the overall performance and coexistence capabilities of non-coherent solutions (see, e.g., [17], [20], [27], [28] and references therein).…”

Section: Introductionmentioning

confidence: 97%

On the robustness of T<inf>C</inf>-DTR UWB receivers to narrow-band interference: Performance analysis and guidelines for system optimization

Renzo

Leonardis

Graziosi

et al. 2009

2009 IEEE International Conference on Ultra-Wideband

View full text Add to dashboard Cite

In this paper, we analyze the performance of a particular class of Transmitted-Reference (TR) receiver for Impulse Radio (IR) Ultra Wide Band (UWB) communication systems, which is called Chip-Time Differential TransmittedReference (Tc-DTR). The analysis aims at investigating the performance of this receiver in the presence of faded narrowband interference, and at comparing it with other TR receiver schemes proposed in the literature. It is shown that Tc-DTR receivers can offer a substantial performance gain with respect to other non-coherent receiver architectures, provided that some optimization conditions on code design are satisfied. Guidelines for optimal code and system optimization to reject narrow-band interference are provided in the present manuscript, as well as their effect on system performance. Numerical simulations are also shown to substantiate findings and analytical derivations.

show abstract

“…Theoretical studies in [15], [18]- [21] have clearly shown that the performance of these receivers get significantly worse in the presence of interference, and have also pointed out that the performance gain offered by a receiver in a multi-path environment might disappear in the presence of interference [18]. These results have motivated significant research efforts to develop robust interference cancelation mechanisms to improve the overall performance and coexistence capabilities of non-coherent solutions (see, e.g., [17], [20], [27]- [29] and references therein).…”

Section: Introductionmentioning

confidence: 99%

Detection and false alarm probabilities of IR-UWB Chip-Time Differential Transmitted-Reference receivers: A framework for performance analysis and optimization over multipath fading channels with tone interference

Renzo

Leonardis

Graziosi

et al. 2009

MILCOM 2009 - 2009 IEEE Military Communications Conference

View full text Add to dashboard Cite

In this paper, we will propose a framework for computing Detection (Pd) and False Alarm (Pfa) Probabilities for Chip-Time Differential Transmitted-Reference (Tc-DTR) receivers over frequency-selective multipath fading channels further impaired by Narrow-Band Interference (NBI). We will show that, when compared to similar non-coherent receiver architectures, T c-DTR offers an intrinsic robustness to NBI, provided that the Direct Sequence (DS) signature code is adequately designed to minimize the effect of interference. We will point out that, among various non-coherent receiver schemes, the property of almost completely rejecting NBI via a proper code design is unique to T c-DTR with DS coding. Guidelines for optimal code and system optimization will also be provided in the present manuscript. Numerical simulations will be shown to substantiate findings and analytical derivations.

show abstract

Performance of UWB systems in the presence of severe multipath and narrowband interference

Cited by 8 publications

References 4 publications

A Frequency Offset Transmit Reference System in Dense Multipath Environments: Propagation Effects and Design Considerations

A Frequency Offset Transmit Reference System in Dense Multipath Environments: Propagation Effects and Design Considerations

On the robustness of T<inf>C</inf>-DTR UWB receivers to narrow-band interference: Performance analysis and guidelines for system optimization

Detection and false alarm probabilities of IR-UWB Chip-Time Differential Transmitted-Reference receivers: A framework for performance analysis and optimization over multipath fading channels with tone interference

Contact Info

Product

Resources

About