Journal Article10.1109/26.898256
Pseudo-maximum-likelihood data estimation algorithm and its application over band-limited channels
Hamid R. Sadjadpour,C.L. Weber +1 more
TL;DR: A pseudo-maximum-likelihood data estimation (PML) algorithm for discrete channels with finite memory in additive white Gaussian noise environment is developed and the simplified PML algorithm is introduced to reduce the computational complexity of thePML algorithm for channels with long impulse response.
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Abstract: A pseudo-maximum-likelihood data estimation (PML) algorithm for discrete channels with finite memory in additive white Gaussian noise environment is developed. Unlike the traditional methods that utilize the Viterbi algorithm (VA) for data sequence estimation, the PML algorithm offers an alternative solution to the problem. The simplified PML algorithm is introduced to reduce the computational complexity of the PML algorithm for channels with long impulse response. The adaptive version of the PML algorithm suitable for time-varying channels such as frequency-selective Rayleigh fading channels is also introduced. Computer simulation results demonstrate the performance of these algorithms and compare them to the VA-based techniques for different types of channels. The performance design criterion for the PML algorithm is derived in the Appendix.
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Citations
A list-based detection technique for long intersymbol interference channels
Sairamesh Nammi,Deva K. Borah +1 more
TL;DR: A list based data detection algorithm is presented for long intersymbol interference channels and it is shown that the detector can be designed to ensure a specific bit error rate performance with respect to a maximum likelihood sequence detector.
11
Blind sequence detection without channel estimation
TL;DR: This paper proposes a new blind sequence estimation method for single-input single-output (SISO) systems utilizing an optimal trellis search, which is performed by a channel-independent Viterbi algorithm (CIVA), which does not require channel coefficients.
8
Trellis-based iterative adaptive blind sequence estimation for uncoded/coded systems with differential precoding
Xiao-Ming Chen,Peter Adam Hoeher +1 more
TL;DR: iterative, adaptive trellis-based blind sequence estimators, which can be interpreted as reduced-complexity receivers derived from the joint ML data/channel estimation problem, and a double serially concatenated scheme, where the inner code is applied to combat the shift ambiguity and the outer code provides time diversity in conjunction with an interburst interleaver.
Windowed Fast Chase Detection for Long Intersymbol Interference Channels
Li Hui,Shen Yuehong,Xu Kun +2 more
TL;DR: Complexity analysis and simulation results validate that the detector constructed by adopting the two improvements, can ensureBER performance nearly the same as WCE approaching MLSD, meanwhile the total calculation complexity can be less than 20 percent of WCE, especially under low signal-to-noise ratio (SNR) circumstances.
3
Patent
List-based detection in fading channels with long intersymbol interference
Sairamesh Nammi,Deva K. Borah +1 more
- 12 Feb 2008
TL;DR: In this article, an apparatus, computer software, and method for data detection in channels suffering from intersymbol interference comprising receiving a signal representative of a binary digit of data, computing a reliability score for that binary digit via windowed Chase equalization, and causing a signal to be output that the binary digit is a zero or a one.
2
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