Maximum Likelihood Sequence Estimation of Binary Sequences Transmitted Over Bandlimited Nonlinear Channels

Mesiya, M.; McLane, P.J.; Campbell, L. L.

doi:10.1109/tcom.1977.1093884

Cited by 52 publications

(10 citation statements)

References 13 publications

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“…This procedure is repeated in the same way at each step, where the best pivoting response at each stage is selected by an exhaustive search among all the pivot candidates at that stage. The minimization of the energy of the orthogonal responses (see (3), (4), and associated discussion) ensures that condition (19) is met. As we shall show later, condition (19) gives rise to space channel compression, which can be exploited to reduce complexity.…”

Section: Space Channel Compressionmentioning

confidence: 99%

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Maximum Likelihood Sequence Detection Receivers for Nonlinear Optical Channels

Maggio

Hueda

Agazzi³

2015

Journal of Electrical and Computer Engineering

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The space-time whitened matched filter (ST-WMF) maximum likelihood sequence detection (MLSD) architecture has been recently proposed (Maggio et al., 2014). Its objective is reducing implementation complexity in transmissions over nonlinear dispersive channels. The ST-WMF-MLSD receiver (i) drastically reduces the number of states of the Viterbi decoder (VD) and (ii) offers a smooth trade-off between performance and complexity. In this work the ST-WMF-MLSD receiver is investigated in detail. We show that the space compression of the nonlinear channel is an instrumental property of the ST-WMF-MLSD which results in a major reduction of the implementation complexity in intensity modulation and direct detection (IM/DD) fiber optic systems. Moreover, we assess the performance of ST-WMF-MLSD in IM/DD optical systems with chromatic dispersion (CD) and polarization mode dispersion (PMD). Numerical results for a 10 Gb/s, 700 km, and IM/DD fiber-optic link with 50 ps differential group delay (DGD) show that the number of states of the VD in ST-WMF-MLSD can be reduced ∼4 times compared to an oversampled MLSD. Finally, we analyze the impact of the imperfect channel estimation on the performance of the ST-WMF-MLSD. Our results show that the performance degradation caused by channel estimation inaccuracies is low and similar to that achieved by existing MLSD schemes (∼0.2 dB).

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Section: Space Channel Compressionmentioning

confidence: 99%

“…Although the computational load of the latter may be important, its complexity is not critical since it can be implemented at a low frequency rate 3 . On the other hand, the dimension of the front-end ( ) is expected to be very low in general as a result of the spatial energy compression achieved by the ST-WMF-MLSD.…”

Section: Complexity Considerationsmentioning

confidence: 99%

Maximum Likelihood Sequence Detection Receivers for Nonlinear Optical Channels

Maggio

Hueda

Agazzi³

2015

Journal of Electrical and Computer Engineering

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“…MLSE is appropriate for non linear channel as linear ones. In [8], an MLSE is performed on band limited non linear channels. Likewise, an equalizer structure, which includes a Viterbi decoder, is proposed in [9] to face the non linear ISI.…”

Section: A State Of Artmentioning

confidence: 99%

MLSE detector for beyond VHBR contactless air interface

Doré

Touati

Pebay-Peyroula

2012

2012 IEEE International Conference on RFID-Technologies and Applications (RFID-TA)

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We investigate the problem of sequence detection in a non linear channel for a contactless air interface. The work presented in this study is based on the the VHBR (Very High BitRate) amendments of the ISO 14443 international standard. We focused more particularly on the part of the standard extension that defines the phase modulation (PSK) from the Proximity Coupling Device (PCD) to the Passive Inductive Coupled Card (PICC). We propose an efficient detector to overcome both Inter Symbol Interference (ISI) due to the high data rates, and system non linearities introduced by the differential detection at the receiver side. The proposed detector is an adaptation of the Viterbi algorithm for constraint-ternary alphabet. Our numerical results show that a rate of 13.56 Mbps can be achieved using a 15-states sequence detector.

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“…It is well known that hard limiter makes it extremely difficult to analyze the BER or SNR degradation in demodulation [9], [22]- [24]. For BPSK, Jacobs [9] analyzed the SNR degradation in hard limited spread spectrum systems with large signal-time-duration-noise-bandwidth products and low SNR.…”

Section: Demodulationmentioning

confidence: 99%

“…With the presence of Rayleigh fading, can be written as (22), shown at the bottom of the next page. The first factor is common for all paths.…”

Section: Decoding For Rayleigh Fading Channelmentioning

confidence: 99%

Performance of UWB PSK systems using fully saturated power amplifiers

Liu

Taylor

2006

IEEE J. Select. Areas Commun.

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Abstract-This paper studies the performance of ultra-wideband (UWB) radio communications systems employing phase shift keying (PSK) modulation and fully saturated power amplifiers through additive white Gaussian noise (AWGN) channel or Rayleigh fading channel. An impulse response method is provided to analyze the signal-to-noise ratio (SNR) degradation. Both convolutional code and turbo code are employed with the Viterbi decoding and the iterative decoding, respectively. The decoding algorithms are modified for the Rayleigh fading channel. Near optimal bit error rate (BER) performance is achieved when employing either convolutional code or turbo code. The simulation results match the derivation. Therefore, fully saturated power amplifiers can be employed in UWB PSK systems to significantly reduce radio cost, simplify radio circuit, and increase battery life for portable terminals.Index Terms-Bit error rate (BER), fading channel, modulation, nonlinear radio channel, ultra-wideband (UWB).

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Maximum Likelihood Sequence Estimation of Binary Sequences Transmitted Over Bandlimited Nonlinear Channels

Cited by 52 publications

References 13 publications

Maximum Likelihood Sequence Detection Receivers for Nonlinear Optical Channels

Maximum Likelihood Sequence Detection Receivers for Nonlinear Optical Channels

MLSE detector for beyond VHBR contactless air interface

Performance of UWB PSK systems using fully saturated power amplifiers

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