Results 251 to 260 of about 6,382,299 (293)
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Robust time and phase synchronization for continuous phase modulation
IEEE Transactions on Communications, 2006A novel joint timing and phase-recovery technique is proposed for continuous phase modulation (CPM) systems based on Kalman filtering and an approximate representation of CPM signals with nonorthogonal exponential expansions (nOEE). Compared with existing techniques, the proposed synchronizer requires a less complex front-end processor, and can achieve
Qing Zhao 0002, Gordon L. Stüber
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Multiple Phase Synchronization in Continuous Phase Modulation
Digital Signal Processing, 1993Abstract This paper illustrates decoding algorithms wherein carrier phase recovery is accomplished by means of an array of synchronizers, instead of a single synchronizer as happens in conventional schemes. Algorithms with multiple synchronization are compared with others (traditional and untraditional) in terms of implementation complexity and error
A. N. D'ANDREA +2 more
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A Pragmatic Approach to Coded Continuous-Phase Modulation
2007 Information Theory and Applications Workshop, 2007In this paper, we show that a "pragmatic" approach to coded CPM schemes suffers from a significant capacity loss. This loss can be greatly reduced by choosing an appropriate mapping different from natural or Gray, adopted so far. We propose to add to the CPM modulator a linear feedback, optimized through capacity arguments, that permits to achieve ...
BENEDETTO, Sergio +3 more
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Doubly Iterative Equalization of Continuous-Phase Modulation
IEEE Transactions on Communications, 2007In this paper, a doubly iterative receiver is proposed for joint turbo equalization, demodulation, and decoding of coded binary continuous-phase modulation (CPM) in multipath fading channels. The proposed receiver consists of three soft-input soft-output (SISO) blocks: a front-end soft-information-aided minimum mean square error (MMSE) equalizer ...
Baris Özgül, Mutlu Koca, Hakan Deliç
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Block encoding with continuous phase modulation
IEEE Transactions on Communications, 1994Block encoding is considered to increase the minimum distance of CPM signals. Codes are constructed to prevent merging events with low Euclidean distances. Numerical results presented with full response, partial response and trellis coded CPM signals indicate that block coding can significantly increase the minimum distance of the signals.
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Noncoherent continuous-phase modulation for DS-CDMA
IEEE International Conference on Communications, 2003. ICC '03., 2004The combination of continuous phase modulation (CPM) with direct-sequence code-division multiple access (DS-CDMA) for multiuser transmission over the additive white Gaussian noise channel is discussed. Concentrating on the important special case of generalized minimum-shift keying, particularly simple receiver structures are obtained.
Lutz H.-J. Lampe +3 more
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Low complexity receivers for continuous phase modulation
2018 26th Signal Processing and Communications Applications Conference (SIU), 2018This paper investigates practical implementations of a maximum likelihood sequence estimator (MLSE) receiver for CPM based on Laurent decomposition using Viterbi algorithm. On the other hand, the decomposition of the CPM signal in the Walsh signal space that brings the less hardware requirement is investigated.
AKTAŞ, EMRE, Sen, Cansu
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Frequency-domain equalization for continuous phase modulation
2004 IEEE 15th International Symposium on Personal, Indoor and Mobile Radio Communications (IEEE Cat. No.04TH8754), 2005Single-carrier frequency-domain equalization (SC-FDE) is proposed for continuous phase modulation (CPM). Two different discrete representations of the CPM signal are obtained. One is an orthogonal representation obtained from the Gram-Schmidt orthonormalization procedure, and the other is obtained from Laurent's decomposition for binary CPM.
Jun Tan 0002, Gordon L. Stüber
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A partially coherent detector for continuous phase modulation
IEEE Journal on Selected Areas in Communications, 1989A novel partially coherent detector for joint data detection and carrier phase estimation of continuous-phase-modulated (CPM) signal is presented. The algorithm differs from coherent Viterbi algorithm only in the metric which it maximizes over the possible transmitted data sequences. This metric is influenced both by the correlation of the hypothesized
William Harrold, Nick G. Kingsbury
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Linearized continuous phase modulation
Conference Proceeding IEEE Pacific Rim Conference on Communications, Computers and Signal Processing, 2003Linearized continuous phase modulation (LCPM) is introduced and compared to trellis-coded modulation (TCM). It is shown that a potential power gain exists in favor of LCPM over TCM at bandwidth efficiencies larger than 3 bps/Hz. Moreover, it is shown that LCPM can be generated using a single in-phase branch serially connected to a linear filter and ...
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