Analysis of the error performance of trellis-coded modulations in Rayleigh-fading channels

Cavers, J.K.; Ho, P.

doi:10.1109/26.126709

Cited by 243 publications

(93 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…It would be interesting to discover other applications in which similar problems arise. The calculation of the cumulative distribution function (cdf) in terms of residues seems to be originally performed in [23]. Reference [25] considers only the probability that the quadratic form is less or equal to zero.…”

Section: Discussionmentioning

confidence: 99%

“…Reference [25] considers only the probability that the quadratic form is less or equal to zero. In [24], details of the derivation are given, that were omitted in [23]. However, the derivation here differs in some steps from [24] in that it pays more attention to some issues.…”

Section: Discussionmentioning

confidence: 99%

“…The cumulative distribution function of a Hermitian quadratic form in random variables is derived in Appendix A. Applying the result to yields the following proposition, also found in [23], [24], [13]. However, our derivation in Appendix A is different from [23], [24] and is necessary for a rigorous asymptotic analysis that will follow.…”

Section: A Pairwise Symbol Error Probabilitymentioning

confidence: 96%

See 2 more Smart Citations

Asymptotic error probability analysis of quadratic receivers in Rayleigh-fading channels with applications to a unified analysis of coherent and noncoherent space-time receivers

Brehler

Varanasi

2001

IEEE Trans. Inform. Theory

191

192

View full text Add to dashboard Cite

Abstract-A general, asymptotic (high signal-to-noise (SNR)) error analysis is introduced for quadratic receivers in frequency-flat and multipath Rayleigh-fading channels with multiple transmit and receive antennas. Asymptotically tight expressions for the pairwise error probabilities are obtained for coherent, noncoherent, and differentially coherent space-time receivers. Not only is our unified analysis applicable to more general modulation schemes and/or channel models than previously considered, but it also reveals a hitherto unrecognized eigenvalue structure that is common to all of these problems. In addition to providing an easy recipe for computing the asymptotic pairwise error rates, we make some conclusions regarding criteria for the design of signal constellations and codes such as a) the same design criteria apply for both correlated and independent and identically distributed (i.i.d.) fading processes and b) for noncoherent communications, unitary signals are optimal in the sense that they minimize the asymptotic union bound.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: A Pairwise Symbol Error Probabilitymentioning

confidence: 96%

See 1 more Smart Citation

Asymptotic error probability analysis of quadratic receivers in Rayleigh-fading channels with applications to a unified analysis of coherent and noncoherent space-time receivers

Brehler

Varanasi

2001

IEEE Trans. Inform. Theory

191

192

View full text Add to dashboard Cite

show abstract

“…A similar investigation was carried out in [14] for trellis-coded modulation in scalar channels. Very recently, in [15], the authors derived the maximum possible outage capacity induced by the channel estimation errors, in the context of Rayleigh channels and a theoretical decoder.…”

Section: Introduction Multiband Orthogonal Frequency-division Multmentioning

confidence: 87%

Improved iterative detection and achieved throughputs of OFDM systems under imperfect channel estimation

Sadough

Duhamel

2008

IEEE Trans. Wireless Commun.

View full text Add to dashboard Cite

Assuming imperfect channel estimation, we propose an improved detector for ultra wideband (UWB) systems employing multiband orthogonal frequency-division multiplexing (MB-OFDM). By adopting a Bayesian approach involving the statistics of the channel estimation errors, we formulate an improved maximum-likelihood (ML) detection metric taking into account the characteristics of the channel estimates. As a first step, we propose a modified iterative detector based on maximum a posteriori which reduces the impact of channel uncertainty on the decoder performance, by an appropriate use of this metric. The results are compared to those obtained by using a detector based on a mismatched ML metric, which uses the channel estimate as if it was the perfect channel. In a second step, we calculate the information rates achieved by both the improved and mismatched ML detectors, in terms of achievable outage rates. These outage rates are compared to those provided by a theoretical (not practical) decoder defined as the best decoder in the presence of channel estimation errors. Numerical results over both uncorrelated Rayleigh fading channels and realistic UWB channels show that the improved detector provides significant gains in terms of bit error rate and achievable outage rates, compared to the classically-used mismatched approach, without any increase in the receiver complexity.

show abstract

“…The parametrization of (10) is important because the BER performance of convolutional codes is strictly related to the matrix EFDOM C [20] [21]. Thus, in order to simulate the actual OFDM system by our EFDOM, we can generate the useful channel EFDOM d from an AWGN vector by imposing the colour summarized by EFDOM C with standard eigenvalue decomposition (EVD) approaches [22].…”

Section: Icimentioning

confidence: 99%

A Novel Simulation Model for Coded OFDM in Doppler Scenarios: DVB-T Versus DAB

Poggioni

Rugini

Banelli

2007

2007 IEEE International Conference on Communications

View full text Add to dashboard Cite

Abstract-This paper develops a novel simulation model to characterize the bit error rate (BER) performance of coded orthogonal frequency-division modulation (OFDM) systems affected by Doppler spread. This simulation model, which acts directly in the frequency domain, greatly enhances the simulation efficiency, while maintaining a very good accuracy. By this model, the BER of two of the most popular wireless broadcasting standards, digital audio broadcasting (DAB) and terrestrial digital video broadcasting (DVB-T), has been assessed in Rayleigh and Rice channels. Simulation results show that the delay spread of the channel heavily affects the performance of DVB-T, while DAB is less sensitive to the frequency-selectivity of the channel. Moreover, DVB-T yields better performance than DAB in typical Rayleigh channels, whereas in Rice channels, for high signal-to-noise ratio (SNR), DAB outperforms DVB-T.

show abstract

Analysis of the error performance of trellis-coded modulations in Rayleigh-fading channels

Cited by 243 publications

References 9 publications

Asymptotic error probability analysis of quadratic receivers in Rayleigh-fading channels with applications to a unified analysis of coherent and noncoherent space-time receivers

Asymptotic error probability analysis of quadratic receivers in Rayleigh-fading channels with applications to a unified analysis of coherent and noncoherent space-time receivers

Improved iterative detection and achieved throughputs of OFDM systems under imperfect channel estimation

A Novel Simulation Model for Coded OFDM in Doppler Scenarios: DVB-T Versus DAB

Contact Info

Product

Resources

About