TIIS (한국인터넷정보학회)
Current Result Document :
| 한글제목(Korean Title) |
An amplify-and-forward relaying scheme based on network coding for Deep space communication |
| 영문제목(English Title) |
An amplify-and-forward relaying scheme based on network coding for Deep space communication |
| 저자(Author) |
Wangmei Guo
Junhua Zhang
Guiguo Feng
Kaijian Zhu
Jixiang Zhang
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| 원문수록처(Citation) |
VOL 10 NO. 02 PP. 0670 ~ 0683 (2016. 02) |
한글내용
(Korean Abstract) |
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영문내용
(English Abstract) |
Network coding, as a new technique to improve the throughput, is studied combined with multi-relay model in this paper to address the challenges of long distance and power limit in deep space communication. First, an amplify-and-forward relaying approach based on analog network coding (AFNC) is proposed in multi-relay network to improve the capacity for deep space communication system, where multiple relays are introduced to overcome the long distance link loss. The design of amplification coefficients is mathematically formulated as the optimization problem of maximizing SNR under sum-power constraint over relays. Then for a dual-hop relay network with a single source, the optimal amplification coefficients are derived when the multiple relays introduce non-coherent noise. Through theoretic analysis and simulation, it is shown that our approach can achieve the maximum transmission rate and perform better over single link transmission for deep space communication.
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| 키워드(Keyword) |
Deep space communication
amplify-and-forward
multi-relay
analog network coding
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| 파일첨부 |
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