상세정보
학술대회
Pilot Structure Design to Increase Wireless Channel Capacity for High-Speed Railway
- 저자
- 최용윤, 이재홍
- 발행일
- 201706
- 출처
- European Conference on Networks and Communications (EuCNC) 2017, pp.1-5
- 협약과제
- 16HF1300, 평창 동계올림픽 5G 통신서비스 지원을 위한 차세대 통신네트워크 기술개발, 정현규
- 초록
- 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 제안 키워드
- 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