中兴通讯技术
中興通訊技術
중흥통신기술
ZHONGXING TELECOM TECHNOLOGY
2014年
5期
6-8
,共3页
正交频分复用%无源光网络%时分复用%时波分复用
正交頻分複用%無源光網絡%時分複用%時波分複用
정교빈분복용%무원광망락%시분복용%시파분복용
orthogonal frequency division multiplexing%passive optical network%time division multiplexing%time wavelength division multiplexing
认为当采用低频段的射频资源时,色散导致的双边带功率衰落对正交频分复用无源光网络(OFDM-PON)的影响很小。基于时分复用(TDM)架构的OFDM-PON ,充分利用正交频分复用(OFDM)技术的优势与TDM架构的无色性,与现有的以太网无源光网络(EPON)、千兆比无源光网络(GPON)兼容性高,是解决上行无色性传输的最优方案。基于OFDM的时波分复用无源光网络(TWDM-PON)充分利用了OFDM调制优势,用来提升单载波容量,在不改变TWDM-PON系统结构情况下,实现100 Gbit/s的高速接入,是未来无源光网络的重要候选方案。
認為噹採用低頻段的射頻資源時,色散導緻的雙邊帶功率衰落對正交頻分複用無源光網絡(OFDM-PON)的影響很小。基于時分複用(TDM)架構的OFDM-PON ,充分利用正交頻分複用(OFDM)技術的優勢與TDM架構的無色性,與現有的以太網無源光網絡(EPON)、韆兆比無源光網絡(GPON)兼容性高,是解決上行無色性傳輸的最優方案。基于OFDM的時波分複用無源光網絡(TWDM-PON)充分利用瞭OFDM調製優勢,用來提升單載波容量,在不改變TWDM-PON繫統結構情況下,實現100 Gbit/s的高速接入,是未來無源光網絡的重要候選方案。
인위당채용저빈단적사빈자원시,색산도치적쌍변대공솔쇠락대정교빈분복용무원광망락(OFDM-PON)적영향흔소。기우시분복용(TDM)가구적OFDM-PON ,충분이용정교빈분복용(OFDM)기술적우세여TDM가구적무색성,여현유적이태망무원광망락(EPON)、천조비무원광망락(GPON)겸용성고,시해결상행무색성전수적최우방안。기우OFDM적시파분복용무원광망락(TWDM-PON)충분이용료OFDM조제우세,용래제승단재파용량,재불개변TWDM-PON계통결구정황하,실현100 Gbit/s적고속접입,시미래무원광망락적중요후선방안。
In this paper, we propose that the power fading of double sideband for OFDM-PON induced by chromatic dispersion is smal when using low radio frequency (RF). The OFDM-PON based on time division multiplexing (TDM) architecture is the best solution for uplink colorless transmission. This makes ful use of the advantages of OFDM technique and colorless TDM architecture and is highly compatible with existing EPON and GPON. Time wavelength division multiplexing (TWDM) PON based on OFDM is a strong candidate for future PON, which makes ful use of OFDM modulation to increase the capacity of a single carrier without changing the structure of TWDM-PON system, achieving 100 Gbit/s high-speed access.