Abstract | ||
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This paper proposes a channel state information (CSI) weighting combining scheme for a successive interference canceller (SIC). In general, SIC performance is degraded by the estimation errors in CSI caused by interference and temporal channel variations. This paper introduces a scheme to appropriately weight and combine pre-CSI, defined as CSI estimated for transmitting power control (TPC), and post-CSI, defined as CSI estimated in the SIC process. The combined CSI is more robust against interference and temporal channel variation because pre-CSI and post-CSI resist the former and the latter, respectively. Simulation results show that the combined CSI improves the number of simultaneous transmitting terminals (directly related to interference) 17% (vs. post-CSI) and 5% (vs. pre-CSI), and the allowable environmental speed (directly related to temporal channel variation) 50% (vs. pre-CSI). |
Year | Venue | Keywords |
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2016 | 2016 IEEE 84TH VEHICULAR TECHNOLOGY CONFERENCE (VTC FALL) | M2M, successive interference canceller, transmitting power control, CSI estimation |
Field | DocType | ISSN |
Base station,Weighting,Computer science,Power control,Communication channel,Electronic engineering,Interference (wave propagation),Interference canceller,Channel state information | Conference | 2577-2465 |
Citations | PageRank | References |
0 | 0.34 | 0 |
Authors | ||
3 |
Name | Order | Citations | PageRank |
---|---|---|---|
Hajime Katsuda | 1 | 0 | 1.35 |
Seiji Ohmori | 2 | 0 | 1.01 |
Kazunori Akabane | 3 | 15 | 5.06 |