상세정보
학술대회
Synchronization and Cell Searcher Design over OFDM Frame Structure based on Millimeter Waves
- 발행일
- 201409
- 출처
- Vehicular Technology Conference (VTC) 2014 (Fall), pp.1-6
- 협약과제
- 14MI9100, (통합)초연결 스마트 모바일 서비스를 위한 5G 이동통신 핵심기술개발, 정현규
- 초록
- This report proposes two types of synchronization signal structure and corresponding cell searcher designs for use in orthogonal frequency division multiplexing transmission over millimeter waves. The performance of the cell searchers has been assessed in terms of detection error rate under a high-speed train environment. The simulation results provide an insight into how power spectral density (PSD) boosting is an efficient design tool to achieve both signal-to-noise ratio (SNR) gains and low implementation complexity. Accordingly, the PSD boosted design of the two proposed structures is capable of delivering SNR gains in detection probability, and low hardware complexity, at the same time. Additionally, the analysis deals with non-coherent energy combining as a useful way of improving the detection probability under various channel environments. It also revealed how trade-offs between time diversity and Doppler frequency shift under various mobility cases are tightly coupled with non-coherent energy combining. andcopy; 2014 IEEE.
- KSP 제안 키워드
- Coupled with, Design tool, Detection probability, Doppler frequency shift, Energy combining, Frame structure, Hardware complexity, High Speed Train, Implementation complexity, Millimeter waves(MMW), Non-Coherent