Algebraic Number Precoded OFDM Transmission for Asynchronous Cooperative Multirelay Networks
Joint Authors
Jiang, Hua
Shen, Lizhen
Cheng, Hao
Liu, Guoqing
Source
Mathematical Problems in Engineering
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-11-04
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
This paper proposes a space-time block coding (STBC) transmission scheme for asynchronous cooperative systems.
By combination of rotated complex constellations and Hadamard transform, these constructed codes are capable of achieving full cooperative diversity with the analysis of the pairwise error probability (PEP).
Due to the asynchronous characteristic of cooperative systems, orthogonal frequency division multiplexing (OFDM) technique with cyclic prefix (CP) is adopted for combating timing delays from relay nodes.
The total transmit power across the entire network is fixed and appropriate power allocation can be implemented to optimize the network performance.
The relay nodes do not require decoding and demodulation operation, resulting in a low complexity.
Besides, there is no delay for forwarding the OFDM symbols to the destination node.
At the destination node the received signals have the corresponding STBC structure on each subcarrier.
In order to reduce the decoding complexity, the sphere decoder is implemented for fast data decoding.
Bit error rate (BER) performance demonstrates the effectiveness of the proposed scheme.
American Psychological Association (APA)
Jiang, Hua& Shen, Lizhen& Cheng, Hao& Liu, Guoqing. 2014. Algebraic Number Precoded OFDM Transmission for Asynchronous Cooperative Multirelay Networks. Mathematical Problems in Engineering،Vol. 2014, no. 2014, pp.1-7.
https://search.emarefa.net/detail/BIM-1046513
Modern Language Association (MLA)
Jiang, Hua…[et al.]. Algebraic Number Precoded OFDM Transmission for Asynchronous Cooperative Multirelay Networks. Mathematical Problems in Engineering No. 2014 (2014), pp.1-7.
https://search.emarefa.net/detail/BIM-1046513
American Medical Association (AMA)
Jiang, Hua& Shen, Lizhen& Cheng, Hao& Liu, Guoqing. Algebraic Number Precoded OFDM Transmission for Asynchronous Cooperative Multirelay Networks. Mathematical Problems in Engineering. 2014. Vol. 2014, no. 2014, pp.1-7.
https://search.emarefa.net/detail/BIM-1046513
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1046513