A CLSTM and transfer learning based CFDAMA strategy in satellite communication networks

With the development of the economy and technology, people’s requirement for communication is also increasing. Satellite communication networks have been paid more and more attention because of their broadband service capability and wide coverage. In this paper, we investigate the scheme of convolutional long short term memory (CLSTM) network and transfer learning (TL) based combined free/demand assignment multiple access (CFDAMA) scheme (CFDAMA-CLSTMTL), which is a new multiple access scheme in the satellite communication networks. Generally, there is a delay time T between sending a request from the user to the satellite and receiving a reply from the satellite. So far, the traditional multiple access schemes have not processed the data generated in this period. So, in order to transmit the data in time, we propose a new prediction method CLSTMTL, which can be used to predict the data generated in this period. We introduce the prediction method into the CFDAMA scheme so that it can reduce data accumulation by the way of sending the slots request which is the sum of slots requested by the user and the predicted slots generated in the delay time. A comparison with CFDAMA-PA and CFDAMA-PB is provided through simulation results, which gives the effect of the CFDAMA-CLSTMTL in a satellite communication network.

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A General Framework of LSTM and Transfer Learning Based CFDAMA Strategy in Broadband Satellite System

Journal of Web Engineering ◽

10.13052/jwe1540-9589.2029 ◽

2021 ◽

Author(s):

Qiang He ◽

Zheng Xiang ◽

Peng Ren

Keyword(s):

Transfer Learning ◽

Delay Time ◽

Multiple Access ◽

Short Term Memory ◽

Prediction Method ◽

Satellite System ◽

Satellite Networks ◽

Data Traffic ◽

Broadband Service ◽

Satellite Systems

With the development of the economy and technology, people’s requirement for communication is also increasing. Satellite networks have been paid more and more attention because of its broadband service capability and wide coverage. In this paper, we investigate the framework of a long-short term memory (LSTM) and transfer learning-based Combined Free/Demand Assignment Multiple Access (CFDAMA) scheme (CFDAMA-LSTMTL), which is a new multiple access scheme in the broadband satellite system. Generally, there is a delay time T between sending a request from the user to the satellite and receiving a reply from the satellite. So far, the traditional multiple access schemes has not processed the data traffic generated in this period of time. So, in order to transmit the data traffic in time, we propose a new prediction method, which combines LSTM with transfer learning. We introduce the prediction method into the CFDAMA scheme so that it can reduce data accumulation by the way of sending the sum slots requested by the user and the predicted request slots generated in the delay time T. A comparison with CFDAMA-PA and CFDAMA-PB is provided through simulation results, which gives the effect of the CFDAMA-LSTMTL in a broadband satellite systems.

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Fundamental characteristics of multiple-access schemes for satellite communication networks

Electronics and Communications in Japan (Part I Communications) ◽

10.1002/ecja.4410791003 ◽

1996 ◽

Vol 79 (10) ◽

pp. 17-23

Author(s):

Yoshikuni Onozato ◽

Miki Saito ◽

Ken Teruya

Keyword(s):

Communication Networks ◽

Multiple Access ◽

Satellite Communication ◽

Multiple Access Schemes

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The Application of Power-Domain Non-Orthogonal Multiple Access in Satellite Communication Networks

IEEE Access ◽

10.1109/access.2019.2917060 ◽

2019 ◽

Vol 7 ◽

pp. 63531-63539 ◽

Cited By ~ 20

Author(s):

Xiaojuan Yan ◽

Kang An ◽

Tao Liang ◽

Gan Zheng ◽

Zhiguo Ding ◽

...

Keyword(s):

Communication Networks ◽

Multiple Access ◽

Satellite Communication ◽

Power Domain

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Code Domain Non- Orthogonal Multiple Access Schemes for 5G and Beyond Communication Networks: A Review

Journal of Engineering Research ◽

10.36909/jer.10875 ◽

2021 ◽

Author(s):

Aasheesh Shukla ◽

◽

Manish Kumar ◽

Vinay Kumar Deolia ◽

◽

...

Keyword(s):

Communication Networks ◽

Multiple Access ◽

Heterogeneous Data ◽

Data Traffic ◽

5G Networks ◽

Comprehensive Overview ◽

Power Domain ◽

Rate Splitting ◽

Code Domain ◽

Multiple Access Schemes

Future communication networks may encounter various issues in order to facilitate heavy heterogeneous data traffic and large number of users, therefore more advanced multiple access (MA) schemes are being developed to meet the changing requirements. The research space on making more robust MA scheme is continuously increasing, so it becomes significant to analyze the various schemes to determine the appropriate MA scheme for 5G networks. Therefore, in this paper the comprehensive overview of the most popular and recent MA schemes is presented for 5G networks. This paper mainly classifies the MA techniques in orthogonal MA (OMA) and various types of non-OMA (NOMA) techniques. Specifically, we introduce RSMA (Rate splitting multiple access) and IDMA (interleave division multiple access). Further the close attention is paid to NOMA family, including code-domain NOMA (e.g., SCMA (sparse code multiple access)), power-domain NOMA. Above all, from this exploration, the opportunities and challenges could be notified in MA schemes and further the optimum MA technique can be point out among discussed MA schemes for 5G and beyond communication networks.

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