상세정보
학술대회
Coordinated Multi-point Transmission Combined with Cyclic Delay Diversity in Mobile Satellite Communications
- 발행일
- 201102
- 출처
- International Conference on Personal Satellite Services (PSATS) 2011 (LNICST 71), v.71, pp.274-285
- 협약과제
- 10MR2500, IMT-Advanced 위성접속 기술개발(표준화연계), 구본준
- 초록
- In OFDMA based MSS system, the beam planning with frequency reuse factor 1 may induce severe inter-beam interference due to the usage of the same subcarrier between user equipments of adjacent beams. In order to solve this problem, this paper shows a coordinated multi-point transmission scheme combined with cyclic delay diversity. The proposed scheme improves frequency usage efficiency in a beam boundary area and minimizes the interference between adjacent beams in an OFDMA based mobile satellite communication. In addition, Simulation results show that it makes the received signal to noise ratio increased due to diversity gain from cyclic delayed multi-point transmitted signals. This performance gain could be achieved without any modification of a conventional Single-Input and Single-Output tranceiver, differently from the space-frequency transmit diversity scheme. © Institute for Computer Sciences, Social Informatics and Telecommunications Engineering 2011.
- KSP 제안 키워드
- Computer science, Coordinated Multipoint Transmission, Diversity gain, Diversity scheme, Frequency reuse factor, Mobile satellite communication, Performance gain, Signal noise ratio(SNR), Signal-to-Noise, Single-input, TRANSMIT DIVERSITY