Application of MIMO enhancement technique based on spread spectrum method

Zhang, Yuchi; Li, Shufeng; Jin, Libiao

doi:10.1109/iceict.2016.7879707

“…THSS means that the signal transmission time is jumping, and the transmitter uses a pseudo-random sequence to control whether the transmitter sends a signal in a certain period of time. Among the above (Yuchi et al, 2016;Quyen et al, 2017;Cherni et al, 2011), DSSS is the most widely used one, which is also the focus of this scheme.…”

Section: Direct Sequence Spread Spectrummentioning

confidence: 99%

“…A new hybrid spread spectrum (HSS) technology in MIMO radar systems to protect the orthogonality of the transmitter and receiver was proposed (Chahrour et al, 2018), which could provide better narrow-band interference resistance. The spread spectrum enhancement technique proposed in literature (Yuchi et al, 2016) was based on traditional pseudo-random sequence and completely complementary sequence (CC-S), which could reduce the interference in MIMO systems.…”

Section: Introductionmentioning

confidence: 99%

Design of Multi-Domain Joint Coding Scheme Based on Circular Mapping

LUO,

CHEN

2023

Preprint

0

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With the rapid development of wireless communication technology and the increasing demand for communication quality in various fields, spread spectrum communication (SSC) and multiple input multiple output (MIMO) technology have become crucial research directions in the field of military communication, and space-time block coding (STBC) is an indispensable key technology in MIMO systems. This paper combined the excellent instrument interaction ability of LABVIEW and the data processing ability of MATLAB to build a direct sequence spread spectrum-space time block coding (DSSS-STBC) model based on circular mapping (CM) spread spectrum code, aiming at realizing multi-domain joint transmission of information in space, time, and power domains. The results demonstrated that the joint simulation platform of LABVIEW and MATLAB/Simulink successfully confirmed the superior spread spectrum performance of chaotic spreading codes based on circular mapping compared to traditional spreading codes. In addition, the multi-domain joint coding combining DSSS and STBC significantly enhanced the reliability and interference resistance of the communication system.

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“…In addition, the application of CCS is also extended to the fields of image processing [20] and signal processing. Under the condition of the same signal-to-noise ratio (SNR), the spread spectrum communication gains stronger anti-noise interference performance [21,22]. In this paper, CCS spread spectrum is applied to PDMA system as an enhancement technology, which can broaden the bandwidth and reduce the effect of block error rate (BLER).…”

Section: Introductionmentioning

confidence: 99%

Research on PDMA communication system based on complete complementary sequence

Li

¹

,

Su

²

,

Jin

³

2020

J Wireless Com Network

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Pattern division multiple access (PDMA) is a new non-orthogonal multiple access (NOMA) technology. It is proposed to meet the challenge of 5G large-scale connectivity and high-frequency spectral efficiency. Compared with traditional orthogonal multiple access (OMA), PDMA can support more users through the allocation of non-orthogonal resources. Due to perfect aperiodic correlation, complete complementary sequence (CCS) greatly improves the spectrum efficiency of the system. It has been widely used in wireless communication and radar sensing, and it still has research value in 5G. In order to apply the advantages of CCS to NOMA communication system, this paper proposes a system model of CCS spread spectrum coding based on PDMA. CCS is used as spread spectrum code to improve the performance of PDMA communication system. At the same time, on the basis of spread spectrum technology, this paper analyzes the average power allocation algorithm and water-filling power allocation algorithm, and a dynamic power allocation algorithm based on the transmission rate and practical application is proposed. The simulation results show that the system model can effectively improve the performance of the system.

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“…In addition, the application of CCS is also extended to the fields of image processing [22] and signal processing. Under the condition of the same signal-to-noise ratio (SNR), the spread spectrum communication gains stronger anti-noise interference performance [23,24]. In this paper, CCS spread spectrum is applied to PDMA system as an enhancement technology, which can broaden the bandwidth and reduce the effect of block error rate (BLER).…”

Section: Introductionmentioning

confidence: 99%

Research on PDMA communication system based on Complete Complementary Sequence

Li

¹

,

Su

²

,

Jin

³

2020

Preprint

0

View full text Add to dashboard Cite

Pattern division multiple access (PDMA) is a new non-orthogonal multiple access (NOMA) technology. It is proposed to meet the challenge of 5G large-scale connectivity and high-frequency spectral efficiency. Compared with traditional orthogonal multiple access (OMA), PDMA can support more users through the allocation of non-orthogonal resources. Due to perfect aperiodic correlation, complete complementary sequence (CCS) greatly improves the spectrum efficiency of the system. It has been widely used in wireless communication and radar sensing, and it still has research value in 5G. In order to apply the advantages of CCS to NOMA communication system, this paper proposes a system model of CCS spread spectrum coding based on PDMA. CCS is used as spread spectrum code to improve the performance of PDMA communication system. At the same time, on the basis of spread spectrum technology, this paper analyzes the average power allocation algorithm and water-filling power allocation algorithm, and a dynamic power allocation algorithm based on the transmission rate and practical application is proposed. The simulation results show that the system model can effectively improve the performance of the system.

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Application of MIMO enhancement technique based on spread spectrum method

Cited by 3 publications

References 14 publications

Design of Multi-Domain Joint Coding Scheme Based on Circular Mapping

Design of Multi-Domain Joint Coding Scheme Based on Circular Mapping

Research on PDMA communication system based on complete complementary sequence

Research on PDMA communication system based on Complete Complementary Sequence

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