Measured relative performance of antenna pattern diversity, antenna angle diversity and vertical space diversity in Mississippi

Lin, S.H.

doi:10.1109/glocom.1988.26062

Cited by 11 publications

(3 citation statements)

References 3 publications

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“…Two-decade improvements (factor 100) or even higher would be obtained at higher IBAD , lower correlation coefficients, and less severe delays. While the experimental results of [25] bear the same qualitative contents (e.g., the diversity improvement factor increases with larger amplitude dispersion, and dispersion diversity predicts better improvements than in-phase or average power diversity), no attempts were made in [25] to relate diversity performance to the IBAD correlation, nor were such attempts made in [24].…”

Section: Minimum-dispersion Diversity and Maximum-power Diversitymentioning

confidence: 94%

“…In fact, by the same reasoning, neither did the minimum dispersion-diversity scheme of [28] consider . Furthermore, the maximum power combining as described in [24] has the effect of averaging the received signal powers with the simultaneous effect of noise reduction in the combined received signal. This is known as in-phase or coherent signal summing.…”

Section: Minimum-dispersion Diversity and Maximum-power Diversitymentioning

confidence: 99%

“…In this scheme, usually holds for the in (14). However, it appears to be the case that the procedure of [24] reverted to selection diversity, i.e., , as soon as the criteria of coherence were no longer satisfied. Such criteria included a small difference in total in-band power between the diversity channels, and small phase difference such that the combiner was able to adjust the signals for coherence.…”

Section: Minimum-dispersion Diversity and Maximum-power Diversitymentioning

confidence: 99%

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A statistical characterization of point-to-point microwave links using biased Rayleigh distributions

Martin¹,

Vu-Dinh²

1997

IEEE Trans. Antennas Propagat.

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A recently developed multipath fading model has been used to examine the characteristics of a point-to-point microwave radio channel. The new attributes of this model that differ from other multipath models enable the incorporation of the ideas of fading severity and time variability. This is achieved by the use of a biased Rayleigh-distributed second (interfering) ray. The biasing constant determines the fading severity, while the Rayleigh cutoff frequency determines the rateof-change of the channel. For point-to-point microwave radio channels, this model provides narrow-band fading signal-level distributions that completely replicate the Norton or Nakagami-Rice distributions while at the same time providing signal level distributions that replicate those obtained from broad-band measurements. Thus, this model unifies the narrow-band and broadband multipath fading models. Using this model, nondiversity and diversity system operation is investigated and the concept of a broad-band correlation coefficient introduced. The distributions of notch speed are also investigated. Software simulation results are compared with some hardware simulation results and field measurements.Index Terms-Microwave radio propagation, Rayleigh distributions.

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Section: Minimum-dispersion Diversity and Maximum-power Diversitymentioning

confidence: 94%

Section: Minimum-dispersion Diversity and Maximum-power Diversitymentioning

confidence: 99%

Section: Minimum-dispersion Diversity and Maximum-power Diversitymentioning

confidence: 99%

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A statistical characterization of point-to-point microwave links using biased Rayleigh distributions

Martin¹,

Vu-Dinh²

1997

IEEE Trans. Antennas Propagat.

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Diversity Combiner for a Limiter‐Discriminator‐Integrator Receiver for Coded CPFSK

Goldman¹

1993

Trans Emerging Tel Tech

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The paper describes the operation and analyses the performance of a diversity combiner for a limiter‐discriminator‐integrator receiver for coded continuous‐phase frequency‐shift‐keying (CPFSK). The plane of received signals is optimally partitioned using the generalized cut‐off rate as the optimization criterion. Each received symbol is assigned a weight used for soft decision decoding. If estimates of SNR on the diversity branches are available, the combiner utilizes either both branches or just the branch with the largest SNR, depending on the relative magnitudes of the SNRs. In the large effective range, in which it is advantageous to use both branches, the performance of the analysed combiner is better than that of the selection combiner. The combiner can also operate with no SNR estimates. The paper presents results for optimal partition parameters of the signal plane for various modes of operation, criteria for choosing the optimal mode and an upper bound on the probability‐of‐error for operation with a rate 0.5 convolutional code.

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Microwave Radio Communication

Kizer¹

1995

Handbook of Microwave Technology

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Measured relative performance of antenna pattern diversity, antenna angle diversity and vertical space diversity in Mississippi

Cited by 11 publications

References 3 publications

A statistical characterization of point-to-point microwave links using biased Rayleigh distributions

A statistical characterization of point-to-point microwave links using biased Rayleigh distributions

Diversity Combiner for a Limiter‐Discriminator‐Integrator Receiver for Coded CPFSK

Microwave Radio Communication

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