| Title | Partial-Duplex Amplify-and-Forward Relaying: Spectral Efficiency Analysis under Self-Interference |
| Publication Type | Journal Article |
| Year of Publication | 2019 |
| Authors | López-Valcarce, R, Mosquera, C |
| Journal | IEEE Transactions on Wireless Communications |
| Volume | 18 |
| Issue | 4 |
| Pages | 2271-2285 |
| Date Published | 04/2019 |
| Keywords | full-duplex, myrada, winter |
| Abstract | We propose a novel mode of operation for Amplify-and-Forward relays in which the spectra of the relay input andoutput signals partially overlap. This partial-duplex relaying modeencompasses half- and full-duplex as particular cases. By viewingthe partial-duplex relay as a bandwidth-preserving LinearPeriodically Time-Varying system, a spectral efficiency analysisunder self-interference is developed. In contrast with previousworks, self-interference is regarded as a useful informationbearingcomponent rather than simply assimilated to noise. Thisapproach reveals that previous results regarding the impact ofself-interference on (full-duplex) relay performance are overlypessimistic. Based on a frequency-domain interpretation of theeffect of self-interference, a number of suboptimal decodingarchitectures at the destination node are also discussed. It is foundthat the partial-duplex relaying mode may provide an attractivetradeoff between spectral efficiency and receiver complexity. |
| DOI | 10.1109/TWC.2019.2902390 |
PDF:
