Abstract
| Language | English |
|---|---|
| Pages | 4328-4341 |
| Number of pages | 12 |
| Journal | IEEE Transactions on Wireless Communications |
| Volume | 14 |
| Issue number | 8 |
| DOIs | |
| Publication status | Published - Aug 2015 |
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Keywords
- Two-way relay
- hybrid demodulate-forward
- maximum likelihood detection
- Log-likelihood ratio
- queue analysis
- scheduling
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Hybrid Demodulate-Forward Relay Protocol for Two-Way Relay Channels. / Luo, Chunbo; Parr, Gerard; McClean, Sally I; Peoples, Cathryn; Wang, Xinheng.
Vol. 14, No. 8, 08.2015, p. 4328-4341.Research output: Contribution to journal › Article
TY - JOUR
T1 - Hybrid Demodulate-Forward Relay Protocol for Two-Way Relay Channels
AU - Luo, Chunbo
AU - Parr, Gerard
AU - McClean, Sally I
AU - Peoples, Cathryn
AU - Wang, Xinheng
PY - 2015/8
Y1 - 2015/8
N2 - Two-Way Relay Channel (TWRC) plays an important role inrelay networks, and efficient relaying protocols are particularly importantfor this model. However, existing protocols may not be able to realizethe potential of TWRC if the two independent fading channels are notcarefully handled. In this paper, a Hybrid DeModulate-Forward (HDMF)protocol is proposed to address such a problem. We first introduce thetwo basic components of HDMF - direct and differential DMF, and thenpropose the key decision criterion for HDMF based on the correspondinglog-likelihood ratios. We further enhance the protocol so that it can beapplied independently from the modulation schemes. Through extensivemathematical analysis, theoretical performance of the proposed protocolis investigated. By comparing with existing protocols, the proposed HDMFhas lower error rate. A novel scheduling scheme for the proposed protocolis introduced, which has lower length than the benchmark method. Theresults also reveal the protocol’s potential to improve spectrum efficiencyof relay channels with unbalanced bilateral traffic
AB - Two-Way Relay Channel (TWRC) plays an important role inrelay networks, and efficient relaying protocols are particularly importantfor this model. However, existing protocols may not be able to realizethe potential of TWRC if the two independent fading channels are notcarefully handled. In this paper, a Hybrid DeModulate-Forward (HDMF)protocol is proposed to address such a problem. We first introduce thetwo basic components of HDMF - direct and differential DMF, and thenpropose the key decision criterion for HDMF based on the correspondinglog-likelihood ratios. We further enhance the protocol so that it can beapplied independently from the modulation schemes. Through extensivemathematical analysis, theoretical performance of the proposed protocolis investigated. By comparing with existing protocols, the proposed HDMFhas lower error rate. A novel scheduling scheme for the proposed protocolis introduced, which has lower length than the benchmark method. Theresults also reveal the protocol’s potential to improve spectrum efficiencyof relay channels with unbalanced bilateral traffic
KW - Two-way relay
KW - hybrid demodulate-forward
KW - maximum likelihood detection
KW - Log-likelihood ratio
KW - queue analysis
KW - scheduling
U2 - 10.1109/TWC.2015.2419627
DO - 10.1109/TWC.2015.2419627
M3 - Article
VL - 14
SP - 4328
EP - 4341
IS - 8
ER -