The performance analysis of LDPC coded SFH/BPSK anti-jamming system

Yang, Kongzhe; Zhang, Bangning; Wang, Hangxian; Guo, Daoxing

doi:10.1109/wcsp.2015.7341171

Cited by 4 publications

(4 citation statements)

References 10 publications

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“…So the algorithm can meet the requirements for the real-time communication channel. At the same time, LDPC coded CPM can improve power efficiency and attain high error correcting capacity [10]. At last, this algorithm is realized by software completely.…”

Section: Resultsmentioning

confidence: 99%

An Effective Method of SNR Estimation for LDPC-CPM

Xue¹,

Sun²,

Zhu³

2017

IJCNS

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The technique of SNR estimation is one of the key technologies in adaptive frequency hopping system. The methods of channel quality estimation for nonlinear continuous phase modulation (CPM) signals have some limitations. Therefore, the algorithm of channel quality estimation for CPM signals is worthy of further study. Some similar phase characteristics between sampling CPM and MPSK motivate us to propose a channel estimation algorithm with applications to nonlinear CPM using linear modulation signal processing. A comprehensive analysis of LDPC-CPM schemes using proposed algorithm is presented, and simulation results indicate that the proposed method can not only estimate channel quality well but also make the normalized MSE (NMSE) of SNR estimate close to/less than 0.1 dB at SNR of 4 dB using short block codes. It shows that the algorithm in this paper is effective enough to estimate the signal to noise ratio (SNR). Meanwhile, the algorithm in this paper reduces the complexity of computation compared with other traditional algorithms.

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Section: Resultsmentioning

confidence: 99%

An Effective Method of SNR Estimation for LDPC-CPM

Xue¹,

Sun²,

Zhu³

2017

IJCNS

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“…With the development of different methods of jamming, the application of the FH scheme alone can not guarantee the quality of UAV communications links in the face of malicious jamming. Therefore, it is worthwhile to consider the use of advanced waveform design methods, such as interleaving, channel coding and efficient modulation techniques [13]. The channel coding scheme has been demonstrated to be essential in FH systems due to the high coding gain it has demonstrated.…”

Section: Introductionmentioning

confidence: 99%

“…Substantial research has been conducted with the aim of applying various coding algorithm to FH communication systems in diverse UAV scenarios. Reed-Solomon (RS) codes, convolutional codes, turbo codes and low-density parity check (LDPC) codes are widely studied in FH systems [13][14][15][16][17]. Those codes demonstrate a considerable coding gain against noise.…”

Section: Introductionmentioning

confidence: 99%

Efficient Low-Complexity Turbo-Hadamard Code in UAV Anti-Jamming Communications

Dong

He²,

Yang

et al. 2022

Electronics

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Unmanned aerial vehicle (UAV) systems undergo a period of rapid development in both civil and military scenarios. A major challenge in the malicious jamming environment is to guarantee the reliability of UAV communications links. Frequency hopping (FH) is one of the most commonly used means of combatting the influence brought about by jamming. In this paper, we integrate low-rate codes into an anti-jamming FH communications system, and propose an efficient and low-complexity turbo-Hadamard code scheme. Tail-biting is applied to design the component convolutional-Hadamard codes, and a corresponding decode algorithm is used for implementation in the UAV hardware platform. Numerical simulation results demonstrate that the anti-jamming performance of this method is improved as compared with conventional concatenated codes. Finally, we compare the complexity and transmission efficiency of the proposed algorithm with the algorithms implemented on the field programmable gate array (FPGA) platform in detail.

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“…The effects of system parameters, e.g. code rate and code length, are considered in [4, 5]. Li et al .…”

Section: Introductionmentioning

confidence: 99%