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Conference Paper
Pilot Structure Design to Increase Wireless Channel Capacity for High-Speed Railway
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- Authors
- Yongyun Choi, Jae Hong Lee
- Issue Date
- 2017-06
- Citation
- European Conference on Networks and Communications (EuCNC) 2017, pp.1-5
- Language
- English
- Type
- Conference Paper
- Project Code
- 16HF1300, 5GCHAMPION - 5G Communication with a Heterogeneous, Agile Mobile network in the PyeongChang wInter Olympic competioN, Chung Hyun Kyu
- Abstract
- In this paper, we design a pilot structure in an orthogonal frequency division multiplexing (OFDM) system for high-speed railway (HSR). Ergodic capacity is derived and its lower bound is obtained in closed form. Two schemes of pilot placement in time and frequency domains are proposed which maximizes the lower bound of the ergodic capacity. The ergodic capacities of the two proposed schemes are obtained by computer simulation and compared. It is shown that the proposed schemes achieve higher ergodic capacity than the random pilot placement scheme.
- KSP Keywords
- Channel capacity, Computer simulation(MC and MD), Ergodic capacity, Lower bound, Orthogonal frequency division multiplexing (OFDM) system, closed-form, high-speed railway, structure design, time frequency(T-F), time-frequency domain, wireless channel