OFDMA-PON媒质接入控制研究与展望
首发时间:2013-02-27
摘要:伴随着IPTV、HDTV和VOD等业务的迅速发展,用户对于带宽的需求也迅速增长。正交频分复用接入无源光网络(OFDMA-PON)成本效益好、色散和偏振模色散容忍度高、频谱效率高、带宽粒度灵活,是下一代光接入网的理想选择,已经引起相关学者的广泛关注和研究。目前关于OFDMA-PON技术的研究主要集中在物理层,OFDMA-PON的媒质接入控制研究不多。本文对现存OFDMA-PON的媒质接入控制方案进行整理分析,总结现阶段已有的研究成果,并对OFDMA-PON的媒质接入控制研究前景进行展望,为未来OFDMA-PON的媒质接入控制方案的设计和研究提供参考和借鉴。
关键词: 无源光网络 OFDMA-PON 综述 媒质接入控制(MAC)
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Research and Prospect on Media Access Control in OFDMA-PON
Abstract:Users' requirement for bandwidth is increased rapidly following the rapid development of services such as IPTV, HDTV and VOD. OFDMA-PON is a perfect choice of next generation optical access network bacause of its cost-effective transmission, superior tolerance to chromatics dispersion and polarization mode dispersion, high spectral efficiency and flexible bandwidth granularity and OFDMA-PON techniques are widely foucused on and researched by related scholars. Now reasearches on OFDMA-PON techniques are mainly in physical layer while only a few in media access control. The paper studied existing media access control schemes in OFDMA-PON and prospected the future of media access control research for information purpose during the design and study of media access control access scheme.
Keywords: Passive Optical Network OFDMA-PON Summarisation Media Access Control(MAC)
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