The Effect of Frequency Selective Fading on the Binary Error Probabilities of Incoherent and Differentially Coherent Matched Filter Receivers

Bello, P.; Nelin, B.

doi:10.1109/tcom.1963.1088747

Cited by 190 publications

(34 citation statements)

References 10 publications

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“…Invoking the central limit theorem then leads to the aforementioned complex Gaussian process. This is basically the same logic leading to the continuous Rayleigh model, or more precisely, the Gaussian wide-sense stationary uncorrelated scattering (GWSSUS) model of the urban mobile radio channel advocated by Bello, Cox, and others [17] which appears as a straight line on the semilog plot. This results in the exponential probability density function, -for the path power gain, or, equivalently, the Rayleigh probability density function,…”

Section: =0mentioning

confidence: 68%

A Statistical Model for Indoor Multipath Propagation

Tranter¹,

Taylor²,

Ziemer³

et al. 2009

The Best of the Best

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Abstract-The results of indoor multipath propagation measurements using 10 ns, 1.5 GHz, radarlike pulses are presented for a medium-size office building. The observed channel was very slowly time varying, with the delay spread extending over a range up to about 200 ns and rms values of up to about 50 ns. The attenuation varied over a 60 dB dynamic range. A simple statistical multipath model of the indoor radio channel is also presented, which fits our measurements well, and more importantly, appears to be extendable to other buildings.With this model, the received signal rays arrive in clusters. The rays have independent uniform phases, and independent Rayleigh amplitudes with variances that decay exponentially with cluster and ray delays. The clusters, and the rays within the cluster, form Poisson arrival processes with different, but fixed, rates. The clusters are formed by the building superstructure, while the individual rays are formed by objects in the vicinities of the transmitter and the receiver.

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Section: =0mentioning

confidence: 68%

A Statistical Model for Indoor Multipath Propagation

Tranter¹,

Taylor²,

Ziemer³

et al. 2009

The Best of the Best

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“…Phases are not important from the power control point of view, and in this way, we can reduce control information to be carried. This also makes the system more robust since phases can change fast during deep fades and thus cause problems to the adaptive algorithm [39,40].…”

Section: Adaptive Fxlms Algorithmmentioning

confidence: 99%

“…The performance of the conventional and modified FxLMS algorithms is almost identical. However, in the second row, the faster phase variations during deep fades [39] clearly cause problems to the conventional FxLMS algorithm.…”

Section: Power Control Over a Fading Channel With The Nonquantized Mfmentioning

confidence: 99%

A unified framework for adaptive inverse power control

Höyhtyä

Mämmelä

2016

J Wireless Com Network

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In this paper, a unified framework for adaptive inverse power control is developed. It is based on a modified filtered-x least mean square (MFxLMS) algorithm that is proposed and analyzed. A practical version of the algorithm for closed loop power control is also developed. The filtered-x least mean square (FxLMS) algorithm is widely used for inverse control such as noise cancelation. This is the first paper to apply the algorithm for power control. We have modified the conventional FxLMS algorithm by adding absolute value blocks since power control does not need phase information. The modification makes the algorithm more robust and requires fewer bits to be transmitted in the feedback link. The main contribution of the paper is that the proposed algorithm can be seen as generalized inverse control to be used in power control research. It gives a unified framework for several existing algorithms, linking them to the least mean square (LMS) literature. Numerical results are provided, comparing the performance of the proposed algorithm to existing practical algorithms used, e.g., in Third Generation Partnership Project (3GPP) long-term evolution (LTE) systems.

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“…In the literature, the correlation coefficient is taken to vary from 0.9 [14] to 0.37 [10] for a time separation of . For bandwidths in the 10 kHz range, and Doppler spreads of the order of 100 Hz, will typically range between 0.9 and 0.99.…”

Section: Channel Modelmentioning

confidence: 99%

Binary Adaptive Coded Pilot Symbol Assisted Modulation Over Rayleigh Fading Channels Without Feedback

Abou-Faycal

Médard

Madhow

2005

IEEE Trans. Commun.

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Abstract-Pilot symbol assisted modulation (PSAM) is a standard approach for transceiver design for time-varying channels, with channel estimates obtained from pilot symbols being employed for coherent demodulation of the data symbols. In this paper, we show that PSAM schemes can be improved by adapting the coded modulation strategy at the sender to the quality of the channel measurement at the receiver, without requiring any channel feedback from the receiver. We consider performance in terms of achievable rate for binary signaling schemes. The transmitter employs interleaved codes, with data symbols coded according to their distance from the nearest pilot symbols. Symbols far away from pilot symbols encounter poorer channel measurements at the receiver and are therefore coded with lower rate codes, while symbols close to pilot symbols benefit from recent channel measurements and are coded with higher rate codes. The performance benefits from this approach are quantified in the context of binary signaling over time-varying Rayleigh fading channels described by a Gauss-Markov model. The spacing of the pilot symbols is optimized to maximize the mutual information between input and output in this setting. Causal and noncausal channel estimators of varying complexity and delay are considered. It is shown that, by appropriate optimization for the spacing between consecutive pilot symbols, the adaptive coding techniques proposed can improve achievable rate, without any feedback from the receiver to the sender. Moreover, channel estimation based on the two closest pilot symbols is generally close to optimal.

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The Effect of Frequency Selective Fading on the Binary Error Probabilities of Incoherent and Differentially Coherent Matched Filter Receivers

Cited by 190 publications

References 10 publications

A Statistical Model for Indoor Multipath Propagation

A Statistical Model for Indoor Multipath Propagation

A unified framework for adaptive inverse power control

Binary Adaptive Coded Pilot Symbol Assisted Modulation Over Rayleigh Fading Channels Without Feedback

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