Extended MLSE receiver for the frequency-flat, fast-fading channel

Hart, B.D.; Taylor, D.P.

doi:10.1109/25.580776

Cited by 11 publications

(9 citation statements)

References 23 publications

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“…Thereby, we focus on the maximum likelihood detection performed on the received signal which is oversampled by a factor . In order to avoid Intersymbol Interference (ISI) at each sampling point, a multi-Nyquist pulse is used at the transmitter [10,11].…”

Section: System Modelmentioning

confidence: 99%

“…Indeed, we draw N samples (8). In this context, the update of the weights can be computed using (11) as :…”

Section: Particle Filtering For Phase Tracking and Symbol Detectionmentioning

confidence: 99%

“…The PF-SDPT algorithm is summed up in Table 1. If k multiple of , use (10) and (11) else, use (12) 2. Evaluate the importance weights :…”

Section: Particle Filtering For Phase Tracking and Symbol Detectionmentioning

confidence: 99%

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Particle Filter with Hybrid Importance Function for Joint Symbol Detection and Phase Tracking

Septier¹,

Delignon²,

Menhaj-Rivenq³

et al. 2006

2006 IEEE 7th Workshop on Signal Processing Advances in Wireless Communications

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In digital communication, phase distortions introduced by local oscillators is one of the major concerns in designing low-cost high frequency wireless communication systems. Hence, for phase tracking and symbol detection, we propose an original algorithm which performs both phase tracking and symbol detection by a particle filtering based on the hybrid importance function. Performances of this algorithm are analyzed and compared to phaselocked loop performances in terms of bit error rate and mean square error. Asymptotic posterior Cramér-Rao bound is also derived to show performances of the optimum receiver.

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Section: System Modelmentioning

confidence: 99%

“…Indeed, we draw N samples (8). In this context, the update of the weights can be computed using (11) as :…”

Section: Particle Filtering For Phase Tracking and Symbol Detectionmentioning

confidence: 99%

See 1 more Smart Citation

Particle Filter with Hybrid Importance Function for Joint Symbol Detection and Phase Tracking

Septier¹,

Delignon²,

Menhaj-Rivenq³

et al. 2006

2006 IEEE 7th Workshop on Signal Processing Advances in Wireless Communications

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“…High modulation schemes such as a 128-QAM offers more bits per hertz at the expense of cell size reduction. Numerous research results [6], [7], [8] have been reported with a number of receivers studied illustrating various receiver structures. The receiver structures required for high modulation QAM schemes become much more complex than those required for 4 (QPSK) and 16-QAM schemes.…”

Section: Introductionmentioning

confidence: 99%

On Performance of Multicast Delivery with Fixed WiMAX Telemedicine Networks Using Single-Carrier Modulation

Fong¹,

Hong²

2010

JAIT

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IEEE 802.16e fixed WiMAX provides a low cost solution for integrated multimedia access networks with a wide bandwidth making it particularly suitable for telemedicine applications. While a wide variety of modulation schemes are suitable for fixed wireless systems, single carrier modulations such as QAM offer advantages such as reduction in power requirements and system complexity compared to multi-carrier transmission systems. In this paper, we analyze the performance of QAM schemes used in a fixed WiMAX system that supports multicast distribution of .real-time traffic for healthcare services by evaluation of system performance on a 10 GHz carrier. Results are presented by comparing the distribution of video data using QPSK and 16-QAM and bandwidth utilization is calculated for continuous data transmission in remote patient monitoring.

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“…For a general continuous-time channel model the problem of joint maximum likelihood detection and channel estimation is ill-posed [6]. If the channel response is time-varying but perfectly known by the receiver, MLSD may be implemented according to the receiver structures presented in [8,9) for the frequency-flat and frequency-selective channel, respectively.…”

Section: Introductionmentioning

confidence: 99%

On recursive optimal detection of linear modulations in the presence of random fading

Castoldi

Raheli

1998

Trans Emerging Tel Tech

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Abstract. In this paper, the problem of optimal detection of a linearly modulated digital signal transmitted over a fading channel is addressed. First, the issue of preliminary front-end processing in order to extract a sufficient statistics for information sequence detection from the continuous-time received signal is considered. Then, recursive algorithms are derived, which approximate optimal detection under the assumption of a linear and noisy channel modeled by a stochastic time-varying impulse response with arbitrary known statistics. Specific solutions are proposed for the Rayleigh fading channel typical of mobile radio communications. The information symbols are assumed to be grouped into blocks which are preceded and followed by known preamble and postamble, respectively.This model encompasses both Time Division Multiple Access (TDMA) schemes and pilot symbol assisted transmission. Two detection schemes are considered and relevant recursive formulations proposed. More specifically, optimal detection in complete absence of Channel State Information (CSI) (blind detection) or in presence of perfect CSI at the beginning of the data block (trained detection) are investigated. It is shown that optimal detection performance may be practically attained by sampling the received signal with few samples per symbol interval and searching a trellis diagram of adequate size by means of a Viterbi algorithm. State-complexity reduction techniques based on Per-Survivor Processing (PSP) for both types of detection schemes are also considered.

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Extended MLSE receiver for the frequency-flat, fast-fading channel

Cited by 11 publications

References 23 publications

Particle Filter with Hybrid Importance Function for Joint Symbol Detection and Phase Tracking

Particle Filter with Hybrid Importance Function for Joint Symbol Detection and Phase Tracking

On Performance of Multicast Delivery with Fixed WiMAX Telemedicine Networks Using Single-Carrier Modulation

On recursive optimal detection of linear modulations in the presence of random fading

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