Performance vs. Spectral Properties for Single-Sideband Continuous Phase Modulation

Kassan, Karim; Farès, Haïfa; Glattli, Christian; Louët, Yves

doi:10.1109/tcomm.2021.3073792

Cited by 17 publications

(15 citation statements)

References 16 publications

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“…It shows that the lower modulation index CPM has substantial savings in spectral occupancy. However, it may bring higher minimum square distance, leading to worse BER performance [31]. It has been verified in the following test.…”

Section: A Power Spectrum Performancementioning

confidence: 70%

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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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Section: A Power Spectrum Performancementioning

confidence: 70%

“…Note that the multi-h CPM with higher modulation indices has better BER performance. It is because the higher modulation index brings in a larger minimum squared distance, which promises better BER performance [31].…”

Section: B Performance Comparisonmentioning

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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“…Power spectral density (PSD) function and ACF are among the primary characteristics of GNSS signals [5]. The PSD reflects the spectral characteristics of GNSS signals, while the ACF is closely related to acquisition and tracking performance.…”

Section: The Main Characteristics and Ambiguity Problem Of Cpm Signalsmentioning

confidence: 99%

A Novel Unambiguous Acquisition Algorithm Based on Decomposition and Reconstruction of Sub-correlation Functions for Semi-integer CPM Signals

Xie,

Xue

2024

Preprint

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Continuous phase modulation (CPM) is a nonlinear modulation scheme known for its excellent frequency and power efficiency. CPM with a semi-integer modulation index greater than 1 not only has spectral splitting characteristics like binary offset carrier modulation but also exhibits superior tracking performance and compatibility. However, the multiple side peaks in the autocorrelation function (ACF) of the semi-integer CPM signals introduce ambiguity threats in signal acquisition, and most existing ambiguity cancellation methods are not suitable for CPM signals due to the nonlinear nature of CPM signals. Therefore, a novel unambiguous acquisition algorithm based on decomposition and reconstruction of sub-correlation functions (DRSCF) is proposed for semi-integer CPM signals. The algorithm further decomposes the first pulse amplitude modulation waveform after Laurent decomposition to obtain sub-signal waveforms suitable for CPM signals and reconstructs the unambiguous correlation function by a nonlinear combination of sub-correlation functions. Subsequently, energy loss compensation is performed using ACF. Theoretical analysis and simulation results show that the proposed technique effectively eliminates the ambiguity threat in the acquisition process of semi-integer CPM signals at the expense of some detection performance loss while maintaining the narrow correlation peak characteristics of semi-integer CPM signals.

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“…In the RF diversity design for MRASM-ROBOT in Fig. 10, complex IoT GSMK modulator/demodulator was used which has a Gaussian frequency shaping filter and key parameters from orthogonal space-time block code (OSTBC) transmission [66], sideband modulation [67], continuous phase modulation [68], GFSK Receiver [69], GMSK Pulse [70]. The scheme offers a continuous phase modulation (CPM) signal and has a modulation index h =1/2.…”

Section: B Iot Gsmk Modulatormentioning

confidence: 99%

ASM-ROBOT: A Cyber-Physical Home Automation Controller with Memristive Reconfigurable State Machine

Okafor¹,

Longe²

2022

IJACSA

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In the next 5 to 10 years, digital Artificial Intelligence with Machine Circuit Learning Algorithms (MCLA) will become the mainstream in complex automated robots. Its power concerns, ethical perspectives, including the issues of digital sensing, actuation, mobility, efficient processcomputation, and wireless communication will require advanced neuromorphic process variable controls. Existing home automated robots lack memristic associative memory. This work presents Cyber-Physical Home Automation System (CPHAS) using Memristive Reconfigurable Algorithmic State Machine (MRASM) chart. A process control architecture that supports Concurrent Wireless Data Streams and Power-Transfer (CWDSPT) is developed. Unlike legacy systems with powersplitting (PS) and time-switching (TS) controls, the MRASM-ROBOT explores granular wireless signal controls through unmodulated high-power continuous wave (CW). This transmits infinite process variables using Orthogonal Space-Time Block Code (OSTBC) for interference reduction. The CWDSPT transmitter and receiver circuit design for signal processing are implemented with complexity noise-error reduction during telemetry data decoding. Received signals are error-buffered while gathering control variables' status.Transceiver Memristive neuromorphic circuits are introduced for computational acceleration in the design. Hardware circuit design is tested for system reliability considering the derived schematic models for all process variables. Under small range space diversity, the system demonstrated significant memory stabilization at the synchronous iteration of the synaptic circuitry.

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Performance vs. Spectral Properties for Single-Sideband Continuous Phase Modulation

Cited by 17 publications

References 16 publications

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

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

A Novel Unambiguous Acquisition Algorithm Based on Decomposition and Reconstruction of Sub-correlation Functions for Semi-integer CPM Signals

ASM-ROBOT: A Cyber-Physical Home Automation Controller with Memristive Reconfigurable State Machine

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