Soft-Decision-and-Forward Protocol for Cooperative Communication Networks with Multiple Antennas
- Title
- Soft-Decision-and-Forward Protocol for Cooperative Communication Networks with Multiple Antennas
- Author
- 신동준
- Keywords
- Amplify-and-forward (AF); cooperative communications; distributed space-time code (DSTC); maximum-likelihood (ML) decoder; soft-decision-and-forward (SDF)
- Issue Date
- 2011-06
- Publisher
- KOREAN INST COMMUNICATIONS SCIENCES (K I C S), HYUNDAI KIRIM OFFICETEL 1504-6 SEOCHODONG 1330-18, SEOCHOKU, SEOUL 137-070, SOUTH KOREA
- Citation
- Journal of Communications and Networks J. Commun. Netw. Communications and Networks, Journal of. 13(3):257-265 Jun, 2011
- Abstract
- In this paper, a cooperative relaying protocol called soft-decision-and-forward (SDF) with multiple antennas in each node is introduced. SDF protocol exploits the soft decision source symbol values from the received signal at the relay node. For orthogonal transmission (OT), orthogonal codes including Alamouti code are used and for non-orthogonal transmission (NT), distributed space-time codes are designed by using a quasi-orthogonal space-time block code. The optimal maximum likelihood (ML) decoders for the proposed protocol with low decoding complexity are proposed. For OT, the ML decoders are derived as symbolwise decoders while for NT, the ML decoders are derived as pairwise decoders. It can be seen through simulations that SDF protocol outperforms AF protocol for both OT and NT.
- URI
- http://www.ndsl.kr/ndsl/search/detail/article/articleSearchResultDetail.do?cn=JAKO201123457284974http://hdl.handle.net/20.500.11754/36515
- ISSN
- 1229-2370
- DOI
- 10.1109/JCN.2011.6157435
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > ELECTRONIC ENGINEERING(융합전자공학부) > Articles
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