TY - GEN
T1 - Belief Propagation-Based Joint Iterative Detection and Decoding Algorithm for Asynchronous IDMA Satellite Systems
AU - Li, Shengfeng
AU - Li, Senlin
AU - Chen, Xiang
AU - Wang, Ling
N1 - Publisher Copyright:
© 2021, ICST Institute for Computer Sciences, Social Informatics and Telecommunications Engineering.
PY - 2021
Y1 - 2021
N2 - In recent years, a new emerging Interleave-Division Multiple Access (IDMA) developed from the Code-Division Multiple Access (CDMA), with its unique advantages, has been introduceded into the satellite communication systems to provide a new multi-user access solution. In IDMA satellite systems, the random distribution of the geographical locations of different user ends (UEs) within the coverage of the satellite ground spot beam will cause serious asynchronous transmission. In this case, the computational complexity of MUD will increase sharply compared to the case of synchronization. Unfortunately, although many simplified algorithms were studied, this problem is still not solved effectively. In this paper, inspired by the successful application of the Belief Propagation (BP)-based joint iterative detection and decoding algorithm in CDMA systems, we adopt this method in asynchronous IDMA satellite systems. Analysis and simulations verify that the BP-based iterative algorithm can effectively reduce the algorithm complexity and has better performance than traditional turbo iterative algorithms in the asynchronous IDMA satellite system.
AB - In recent years, a new emerging Interleave-Division Multiple Access (IDMA) developed from the Code-Division Multiple Access (CDMA), with its unique advantages, has been introduceded into the satellite communication systems to provide a new multi-user access solution. In IDMA satellite systems, the random distribution of the geographical locations of different user ends (UEs) within the coverage of the satellite ground spot beam will cause serious asynchronous transmission. In this case, the computational complexity of MUD will increase sharply compared to the case of synchronization. Unfortunately, although many simplified algorithms were studied, this problem is still not solved effectively. In this paper, inspired by the successful application of the Belief Propagation (BP)-based joint iterative detection and decoding algorithm in CDMA systems, we adopt this method in asynchronous IDMA satellite systems. Analysis and simulations verify that the BP-based iterative algorithm can effectively reduce the algorithm complexity and has better performance than traditional turbo iterative algorithms in the asynchronous IDMA satellite system.
KW - Asynchronous
KW - Belief Propagation (BP)
KW - Detection and Decoding
KW - IDMA
KW - Satellite systerm
UR - http://www.scopus.com/inward/record.url?scp=85101330723&partnerID=8YFLogxK
U2 - 10.1007/978-3-030-67514-1_52
DO - 10.1007/978-3-030-67514-1_52
M3 - 会议稿件
AN - SCOPUS:85101330723
SN - 9783030675134
T3 - Lecture Notes of the Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering, LNICST
SP - 655
EP - 669
BT - IoT as a Service - 6th EAI International Conference, IoTaaS 2020, Proceedings
A2 - Li, Bo
A2 - Li, Changle
A2 - Yang, Mao
A2 - Yan, Zhongjiang
A2 - Zheng, Jie
PB - Springer Science and Business Media Deutschland GmbH
T2 - 6th EAI International Conference on IoT as a Service, IoTaaS 2020
Y2 - 19 November 2020 through 20 November 2020
ER -