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Journal Article
Determination of Number of Upstream Subcarriers to Minimize Cycle Time in OFDMA-PON Using Interleaved Polling Method
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- Authors
- Hakjeon Bang, Pangun Park
- Issue Date
- 2016-11
- Citation
- International Journal of Multimedia and Ubiquitous Engineering, v.11, no.3, pp.223-228
- ISSN
- 1975-0080
- Publisher
- SERSC
- Language
- English
- Type
- Journal Article
- Abstract
- 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 Keywords
- Low delay, Optical Network Units(ONU), Orthogonal frequency division multiple access passive optical network(OFDMA-PON), Service discipline, Time duration, frequency-division multiple access(FDMA), gated service, long cycle time, orthogonal frequency-division multiple access(OFDMA), system implementation