상세정보
학술지
Determination of Number of Upstream Subcarriers to Minimize Cycle Time in OFDMA-PON Using Interleaved Polling Method
- 저자
- 방준성, 박판근
- 발행일
- 201611
- 출처
- International Journal of Multimedia and Ubiquitous Engineering, v.11 no.3, pp.223-228
- ISSN
- 1975-0080
- 출판사
- SERSC
- 초록
- In an orthogonal frequency-division multiple access passive optical network (OFDMA-PON) using an interleaved polling method, delay is increased by long cycle time, where the cycle time is the time duration between the current and next upstream transmissions. The cycle time is affected by the number of upstream subcarriers for an optical network unit (ONU). Available subcarriers are limited due to the system implementation cost, but the small number of upstream subcarriers increases the cycle time in sending the same amount of data. In this paper, we determine the number of upstream subcarriers to guarantee low delay under a gated service discipline.
- KSP 제안 키워드
- Frequency division multiple access(FDMA), Low Delay, OFDMA-PON, Optical network unit(ONU), Orthogonal Frequency Division Multiple Access(OFDMA), Passive optical network, Service discipline, Time duration, gated service, long cycle time, system implementation