Non-coherent detection of impulse radio UWB signals based on fourth order statistics

Khan, Muhammad Gufran; Sällberg, Benny; Nordberg, Jörgen; Claesson, Ingvar

doi:10.1109/icuwb.2009.5288784

Cited by 14 publications

(16 citation statements)

References 19 publications

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“…In the above equation, the adjustable parameter β allows us not only to unify the existing nonlinear detectors (β=3 for the KD [14], β= 0 for the FD [15], and β=1 for the VD [16]), but also to optimize the value of β for a better performance. Finally, the j th information bit is recovered with the following rule:…”

Section: B the Proposed Gnd-based Receiver Structurementioning

confidence: 99%

“…For the case of d j =1, according to (11), (13), (14), and (15), the decision variable, , can be derived as follows:…”

Section: A Ed-based Detection Algorithmmentioning

confidence: 99%

“…In the ED-based detection algorithm, the energy of r(t) is measured as follows: (14) and the jth information bit is recovered according to the following rule:…”

Section: A Ed-based Detection Algorithmmentioning

confidence: 99%

“…Therefore, various advanced signal processing technologies have been developed to mitigate the destructive effects of AWGN and NBIs [13]. For example, to achieve a better performance as well as maintain low system complexity, some recent researches replace the square-law operation in the EDbased receivers with higher order nonlinear operations, such as kurtosis detection (KD) [14], fourth-order detection (FD) [15] and variance detection (VD) [16]. Computers simulations show that those nonlinear detection technologies can considerably mitigate the destructive effects of AWGN and NBIs.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

A unified framework for nonlinear detections of impulse radio UWB systems

Yang

Nie

et al. 2014

2014 IEEE 25th Annual International Symposium on Personal, Indoor, and Mobile Radio Communication (PIMRC)

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In this paper, a unified framework, denoted as generalized nonlinear detection (GND), is developed to encompass existing nonlinear detection technologies as well as further optimize the performance of nonlinear detection for noncoherent impulse radio (IR) ultra-wideband (UWB) receivers. Computer simulations show that independent of absence or presence of narrowband interferences (NBIs), the GND-based receivers can achieve much better bit-error rate (BER) performance than the energy detection (ED) based receivers under both AWGN and multipath channels. Furthermore, as compared to the existing nonlinear detection algorithms, the GND algorithm with a well selected β value always has the best BER performance and the strongest ability to resist NBIs.

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Section: B the Proposed Gnd-based Receiver Structurementioning

confidence: 99%

“…For the case of d j =1, according to (11), (13), (14), and (15), the decision variable, , can be derived as follows:…”

Section: A Ed-based Detection Algorithmmentioning

confidence: 99%

“…In the ED-based detection algorithm, the energy of r(t) is measured as follows: (14) and the jth information bit is recovered according to the following rule:…”

Section: A Ed-based Detection Algorithmmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A unified framework for nonlinear detections of impulse radio UWB systems

Yang

Nie

et al. 2014

2014 IEEE 25th Annual International Symposium on Personal, Indoor, and Mobile Radio Communication (PIMRC)

View full text Add to dashboard Cite

show abstract

“…However, these techniques require either a large number of integrators or high sampling rates to estimate weighting coefficients. To achieve a better performance as well as maintain low system complexity, some recent researches replace the square operation in conventional ED-based receivers with higher order operations, such as kurtosis operation (KO) [18], fourth-order operation (FO) [19], and arbitrary power operation (APO) [20]- [22].…”

Section: Introductionmentioning

confidence: 99%

Variance detection for non-coherent impulse radio UWB receivers

Yang

Nie

et al. 2014

2014 International Conference on Computing, Networking and Communications (ICNC)

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In this paper, a novel detection algorithm based on variance detection (VD) is proposed for non-coherent impulse radio (IR) ultra-wideband (UWB) receivers. In the VD-based detection algorithm, after the received IR UWB signals are squared, their variance instead of their mean is measure to recover information bits. Computer simulations show that as compared to the conventional energy detection (ED) based receiver, the newly proposed VD-based receiver can achieve a much better bit-error-rate performance under both AWGN and multipath channels. Furthermore, unlike the conventional ED-based receiver, which is vulnerable to narrowband interference (NBI), the VD-based receiver has an inherent ability to mitigate the destructive effects caused by strong NBI.

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