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Journal Article
Design and Analysis of IPACT-Based Bandwidth Allocation for Delay Guarantee in OFDMA-PON
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- Authors
- Hakjeon Bang, Kyeong-Hwan Doo, Seungil Myong, Giovanni Stea, Chang-Soo Park
- Issue Date
- 2013-11
- Citation
- IEEE/OSA Journal of Optical Communications and Networking, v.5, no.11, pp.1236-1249
- ISSN
- 1943-0620
- Publisher
- Optical Society of America (OSA)
- Language
- English
- Type
- Journal Article
- Abstract
- To guarantee delay performances for timesensitive services in an orthogonal frequency-division multiple access passive optical network (OFDMA-PON), we propose a two-dimensional (i.e., subcarriers and time) upstream bandwidth allocation method based on interleaved polling with adaptive cycle time (IPACT). We first analyze its delay performance in terms of cycle time, i.e., the length of a polling cycle. Then, by setting the maximum polling cycle so as to guarantee timely transmissions for timesensitive services, we identify the requirements, i.e., the maximum bandwidth allocation, the maximum number of allowed optical network units, and the optimum number of subcarriers, for upstream bandwidth allocation with delay guarantees. The proposed scheme is evaluated both numerically and via simulation. © 2009-2012 OSA.
- KSP Keywords
- Allocation method, Cycle Time, Delay guarantee, Frequency division multiple access(FDMA), Optical network unit(ONU), Optimum number, Orthogonal Frequency Division Multiple Access(OFDMA), Orthogonal frequency division multiple access passive optical network(OFDMA-PON), Polling cycle, bandwidth allocation, delay performance