상세정보
학술대회
Mobile and Indoor Reception Performance of LDM-Based Next Generation DTV System
- 저자
- Liang Zhang, Yiyan Wu, Wei Li, Zhihong Hong, Khalil Salehian, 김흥묵, 박성익, 이재영, Pablo Angueira, Jon Montalban, Manuel Velez
- 발행일
- 201506
- 출처
- International Symposium on Broadband Multimedia Systems and Broadcasting (BMSB) 2015, pp.1-6
- 협약과제
- 15MR3300, (통합)융합형 실감방송 서비스 및 전송 기술 개발, 허남호
- 초록
- One of the top-priority requirements for the next generation digital TV (NG-DTV) system is the capability to deliver robust services to both mobile and fixed receivers under challenging propagation conditions. One typical challenging scenario is indoor reception, where the penetration loss could be as high as 20 dB. Other challenging scenarios include outdoor mobile reception at various receiver speeds, from the very low pedestrian speed to the very high speed of high-speed trains. Layered-Division-Multiplexing (LDM) technology is a nonorthogonal multiplexing (NOM) technology which enables efficient transmission of multiple signals with different requirements on robustness and throughput. One major advantage offered by LDM is the capability to deliver extremely robust mobile high-definition TV (HDTV) services. In this paper, we present the computer simulation performances of the LDM mobile services in various challenging mobile reception environments. These performances are then compared to those of TDM-based DTV systems. We further investigate the possibility of deploying mobile service using the more challenging 32k mode. At last, receive antenna diversity is considered to achieve further mobile performance improvement.
- KSP 제안 키워드
- As 2, Computer simulation(MC and MD), High Speed Train, High definition television(HDTV), Mobile services, Penetration loss, Propagation conditions, digital TV, efficient transmission, indoor reception, layered division multiplexing