Probability of Error Analyses of a BFSK Frequency-Hopping System with Diversity Under Partial-Band Jamming Interference--Part III: Performance of a Square-Law Self-Normalizing Soft Decision Receiver

Miller, Leonard E.; Lee, Jhong; Kadrichu, A.

doi:10.1109/tcom.1986.1096609

Cited by 76 publications

(25 citation statements)

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“…However, in FHSS systems, coherent demodulation for BPSK signal is relatively difficult. FSK modulation with noncoherent demodulation is typically employed in FHSS systems [1][2][3] [5]. Hence, in this paper, BFSK modulation and noncoherent demodulation are assumed to be employed for both FFH and MCFH systems.…”

Section: Introductionmentioning

confidence: 99%

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Performance comparison of FFH and MCFH spread-spectrum systems with optimum diversity combining in frequency-selective Rayleigh fading channels

Shin

Lee

2001

IEEE Trans. Commun.

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AbstractIn this paper, the performance of frequencyhopping spread-spectrum (FHSS) systems employing noncoherent reception is analyzed for frequency-selective Rayleigh fading channels. Two different types of diversity transmission techniques, a fast frequency-hopping (FFH) system and a multicarrier frequency-hopping (MCFH) system are investigated. In order to combine diversity receptions, the optimum combining scheme is developed. The probability of error equations are derived, and utilized to evaluate the performance of the two systems. MCFH systems are found to outperform FFH systems when the channel delay spread is severe, while FFH systems are superior to MCFH systems when a channel varies rapidly. Furthermore, it is found that performance enhancement due to an increase of diversity order is more significant for MCFH systems than for FFH systems in frequency-selective fading channels. The effect of frequency-selective fading is also investigated in determining optimum frequency deviations of BFSK signals.

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Section: Introductionmentioning

confidence: 99%

“…A number of diversity combining schemes for FFH systems have been developed and their performances have been studied [5] [6]. These combining schemes can also be applied to MCFH systems.…”

Section: Introductionmentioning

confidence: 99%

Performance comparison of FFH and MCFH spread-spectrum systems with optimum diversity combining in frequency-selective Rayleigh fading channels

Shin

Lee

2001

IEEE Trans. Commun.

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“…One metric for Non-Coherent Binary Frequency Shift Keying (NCBFSK) is the Square-law Linear Combining (SLC) metric [7] which is a linear function of the demodulator outputs. Another metric is the self normalized (SNZ) metric [8] which involves a nonlinear operation on the outputs of the demodulator. The SNZ metric was used with convolutional coding on the Additive White Gaussian Noise (AWGN) channel under partial-band noise (PBN) interference for NCBFSK and was reported to be the best blind metric [9].…”

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confidence: 99%

Blind and Semi-Blind Decoder Metrics for Turbo-Coded Frequency-Hopped Spread-Spectrum in Partial-Band Interference and Fading Channels

Gomaa

Elezabi

2009

Wireless Pers Commun

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We consider turbo-coded frequency-hopped systems operating in partial-band interference and fading channels under conditions which make Signal-to-Noise Ratio (SNR) estimation difficult or infeasible. For Non-Coherent Binary Frequency Shift Keying (NCBFSK) we propose blind decoder metrics that offer significant performance gains over the conventional self-normalized metric originally proposed for non-fading channels and uncoded communications. We also propose several blind heuristic metrics for phasecompensated Binary Phase Shift Keying (BPSK) systems of varying complexity and performance. For both NCBFSK and CBPSK we then derive the exact conditional LLR given the second-order averages of the interference and noise, which we refer to as semi-blind metrics. Impressive performance gains are realized in both cases. For BPSK the best totally blind heuristic metric nearly achieves the performance of the exact conditional LLR and has the advantage of not requiring any statistics on interference or noise. In all cases the performance gains are most pronounced for small values of the interference duty factor.

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“…In this paper we use the Equal Gain Combining (EGC) receiver for non-coherent detection. This receiver is a nearoptimum receiver in a single user application and outperforms the other non-coherent single user receiver [6].…”

Section: System Descriptionmentioning

confidence: 94%

Performance analysis of non-coherent multicarrier frequency-hopping code division multiple-access systems: uncoded and coded schemes

Yazdi

Nasiri-Kenari

Eighth IEEE International Symposium on Spread Spectrum Techniques and Applications - Programme and Book of Abstracts (IEEE Cat.

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In this paper, the multiuser performance of a multicarrier frequency-hopping (MC-FH)CDMA system employing non-coherent detection is evaluated. We derive the bit error rate of the system for both uncoded and coded systems in AWGN and slowly frequency-selective Rayleigh fading channel, based on Gaussian distribution assumption for the decision variable. We use a practical low-rate convolutional error correcting code, which does not require any extra bandwidth further than what is needed by the uncoded scheme. Our numerical results indicate that the coded scheme significantly outperforms the uncoded scheme in both AWGN and fading channels. Furthermore, it is observed that the performance enhancement due to an increase of diversity order is more significant for coded scheme.

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Probability of Error Analyses of a BFSK Frequency-Hopping System with Diversity Under Partial-Band Jamming Interference--Part III: Performance of a Square-Law Self-Normalizing Soft Decision Receiver

Cited by 76 publications

References 0 publications

Performance comparison of FFH and MCFH spread-spectrum systems with optimum diversity combining in frequency-selective Rayleigh fading channels

Performance comparison of FFH and MCFH spread-spectrum systems with optimum diversity combining in frequency-selective Rayleigh fading channels

Blind and Semi-Blind Decoder Metrics for Turbo-Coded Frequency-Hopped Spread-Spectrum in Partial-Band Interference and Fading Channels

Performance analysis of non-coherent multicarrier frequency-hopping code division multiple-access systems: uncoded and coded schemes

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