Energy-Detection UWB Receivers with Multiple Energy Measurements

D’Amico, Antonio A.; Mengali, U.; Arias-de-Reyna, Eva

doi:10.1109/twc.2007.05974

Cited by 75 publications

(63 citation statements)

References 13 publications

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“…With L b > 1, (6)- (8) give us a generalization of the result found in [3]. With L b = 1 the weighting function reduces to the one found in [3]. How to estimate the weights p m is shown in Section III-C.…”

Section: A Optimal Decision Rule For Burst Transmissionsmentioning

confidence: 84%

“…To estimate p m , we have to estimate the parameters w m represents the energy-delay profile of the channel and corresponds to the weight applied in [3]. Plugging (1) into (4) and taking expectations yields…”

Section: Estimation Of the Weighting Coefficients P Mmentioning

confidence: 99%

“…In Figure 3, we consider an equal power (left) and a near-far (right) scenario: first, the performance of a classical energydetection receiver without thresholding [3], where the weighting function does not take the bursts into account; second, an energy-detection receiver with the weighting function taking the bursts into account but without thresholding; third, our receiver, using the sample mean or the sample median. For both scenarios, λ = 100 packet/s.…”

Section: Permentioning

confidence: 99%

“…Compared to a Rake receiver, they operate at a lower sampling frequency, are robust to timing impairments, and do not need to perform a full channel estimation. Indeed, only the estimation of a channel power delay profile may be necessary [2], [3].…”

Section: Introductionmentioning

confidence: 99%

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An energy detection receiver robust to multi-user interference for IEEE 802.15.4a networks

Flury

Merz

Boudec

2008

2008 IEEE International Conference on Ultra-Wideband

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Abstract-Energy-detection receivers are appealing to IEEE 802.15.4a low data-rate networks because of their low complexity. With a reasonable energy consumption, these receivers can exploit the ranging capabilities and multipath resistance of impulse-radio UWB (IR-UWB). However, the performance of energy-detection receivers can be severely degraded by multi-user interference (MUI). One solution may be to coordinate access to the physical layer with an exclusion protocol. Unfortunately, this cannot prevent MUI due to uncontrolled activities in neighboring networks (e.g., several IEEE 802.15.4a piconets running in parallel). Hence, interference must be taken into account already in the design of the physical layer. In this paper, we present an IR-UWB receiver robust to MUI for IEEE 802.15.4a networks. Its architecture is based on energy detection. We also take into full account the different signaling structure between the preamble and the payload of IEEE 802.15.4a packets. In certain scenarios with MUI we found the packet error rate to be up to two orders of magnitude lower when compared to a traditional energy detection receiver that neglects MUI. Further, this significant performance improvement entails only a moderate increase in complexity.

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Section: A Optimal Decision Rule For Burst Transmissionsmentioning

confidence: 84%

Section: Estimation Of the Weighting Coefficients P Mmentioning

confidence: 99%

Section: Permentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

An energy detection receiver robust to multi-user interference for IEEE 802.15.4a networks

Flury

Merz

Boudec

2008

2008 IEEE International Conference on Ultra-Wideband

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“…In a more general signal model, D'Amico and others [3] verified the derivations of [1] and [2] and presented a pilot-symbol-aided optimal weight estimation method which offered the best possible performance at the cost of an efficiency penalty in low data-rate applications incurred by transmission of training symbols. These drawbacks imply a desideratum for a rather different weighting approach when the channel becomes severely time varying.…”

Section: Introductionmentioning

confidence: 99%

Non-Data-Aided Weighted Non-Coherent Receiver for IR-UWB PPM Signals

Shen¹,

Yang²,

Cui³

et al. 2010

ETRI J

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Throughput and delay limits of chirp spread spectrum‐based IEEE 802.15.4a

Ullah

Chowdhury

Khan

et al. 2011

Int J Communication

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SUMMARYThe IEEE 802.15.4 standard is designed to provide a low-power, low data rate protocol offering a high reliability. As an amendment to this standard, IEEE 802.15.4a introduces new options for physical layer to enable precision ranging. In this work, we analyzed the theoretical throughput and delay bounds of the unslotted version of chirp spread spectrum PHY-based 802.15.4a. The formulae for transmission between one sender and one receiver for an ideal channel with no transmission errors are given. The throughput and delay bounds are derived for different frequency bands and data rates. Additionally, to measure spectral utilization, we measured the bandwidth efficiency for both the standards. We also compared our results with IEEE 802.15.4. The comparative analysis concludes that the performance of 802.15.4a exceeds 802.15.4 in terms of throughput and delay. The analytical results of throughput are verified by computer simulations.

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Energy-Detection UWB Receivers with Multiple Energy Measurements

Cited by 75 publications

References 13 publications

An energy detection receiver robust to multi-user interference for IEEE 802.15.4a networks

An energy detection receiver robust to multi-user interference for IEEE 802.15.4a networks

Non-Data-Aided Weighted Non-Coherent Receiver for IR-UWB PPM Signals

Throughput and delay limits of chirp spread spectrum‐based IEEE 802.15.4a

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