Reduced complexity detection of bandwidth efficient partial response CPM

Svensson, Tommy; Svensson, Arne

doi:10.1109/vetec.1999.780557

Cited by 11 publications

(3 citation statements)

References 8 publications

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“…Thus, the L = 2 is also set for LPA-based synchronization. Table 1 shows that under the same 16-state trellis, the LPA-based estimator from Equation (32) requires no subtractor and only 1/3 MFs of the EL-based method due to the reduction in the derivative in Equation (15). Note that the LPA-based estimator of the timing error signal, with MN state = 64 branches of the trellis, has 64 multipliers more than the EL-based estimator.…”

Section: Comparison Between El-based and Lpa-based Synchronization Al...mentioning

confidence: 99%

“…However, tremendous complexity is introduced by the trellis of a large number of phase states and branches. Due to its high complexity, some reducedcomplexity methods are proposed, such as tilted phase transformation (TPT) [10,11], frequency pulse truncation (FPT) [11,12], pulse amplitude modulation (PAM) [13,14], and state-space partitioning (SSP) [11,15]. All the above methods have been discussed in [16], and have been widely used in various CPM receivers [11,[17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

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Design and Implementation of a Low-Complexity Multi-h CPM Receiver with Linear Phase Approximation Synchronization Algorithm

Wang,

Wen,

et al. 2023

Entropy

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Multi-h continuous phase modulation (CPM), with extremely high spectral efficiency, involves the plague of high demodulation complexity with a large number of matched filters and a complex trellis. In this paper, an efficient all-digital demodulator for multi-h continuous phase modulation (CPM) is proposed based on a low-complexity decision-directed synchronization algorithm. Based on the maximum-likelihood estimation of the carrier phase and timing errors, we propose a reduced-complexity timing error detector with linear phase approximation (LPA) to the phase of the multi-h CPM. Compared with the traditional synchronization methods, it avoids derivative matched filtering and reduces about 2/3 of matched filters. The estimated accuracy and bit error rate (BER) performance of the LPA-based synchronization algorithm have no loss, as shown by the numerical simulation. Its stability is verified by the derived S-curve. Then, the receivers with the LPA-based synchronization for the three kinds of promising multi-h CPM are implemented on a Xilinx Kintex-7 FPGA platform. The experimental results show that the onboard tested BER of the proposed design has an ignorable loss in the numerical simulation. The implementation overhead on FPGA is significantly reduced by about 27% slices, 64% DSPs, and 70% block RAMs compared with the conventional method.

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Section: Comparison Between El-based and Lpa-based Synchronization Al...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Design and Implementation of a Low-Complexity Multi-h CPM Receiver with Linear Phase Approximation Synchronization Algorithm

Wang,

Wen,

et al. 2023

Entropy

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“…Due to its high complexity, some reduced-complexity methods are proposed to close to the optimal MLSD algorithm, such as tilde phase transformation (TPT) [8], frequency pulse truncation (FPT) [9], pulse amplitude modulation (PAM) [10], [11], and state-space partitioning (SSP) [12], [13]. All the above methods have been discussed in [14].…”

Section: Introductionmentioning

confidence: 99%

Design and implementation of coherent multi-h CPM receiver with low-complexity decision-directed synchronization algorithm

Wang¹

2022

Preprint

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<p> In this paper, an efficient all-digital demodulator for multi-h CPM is proposed based on a low-complexity decision-directed synchronization algorithm. We derive the maximum-likelihood estimation of the carrier phase and timing errors and propose a reduced-complexity timing error discriminator with the linear phase approximation (LPA). Compared to the traditional synchronization method, it reduces about 2/3 of matched filter banks since only on-time matched filter banks are required. To demonstrate the stability of the proposed algorithm, the S-curve is derived theoretically and plotted with numerical simulation. The numerical results show that the LPA-based synchronization algorithm has no loss of bit error rate (BER) performance compared to the commonly used methods. Then, the LPA-based synchronization and the maximum-likelihood sequence detection for the three kinds of promising multi-h CPM demodulation are implemented on a Xilinx Kirtex-7 FPGA platform achieving the global clock rate of 200MHz. The BER of the overall receiver is tested on board, and the results show that its performance has an ignorable loss to the numerical simulation. The implementation overhead on FPGA is reduced by about 30% compared to the conventional method. </p>

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A review on modulation techniques in multiband-orthogonal frequency division multiplexing in ultra-wideband channel

Din

Mansor

Mohamad

2011

2011 IEEE Symposium on Computers &Amp; Informatics

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Reduced complexity detection of bandwidth efficient partial response CPM

Cited by 11 publications

References 8 publications

Design and Implementation of a Low-Complexity Multi-h CPM Receiver with Linear Phase Approximation Synchronization Algorithm

Design and Implementation of a Low-Complexity Multi-h CPM Receiver with Linear Phase Approximation Synchronization Algorithm

Design and implementation of coherent multi-h CPM receiver with low-complexity decision-directed synchronization algorithm

A review on modulation techniques in multiband-orthogonal frequency division multiplexing in ultra-wideband channel

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