Title :
Optical solutions for fronthaul application (invited)
Author :
Yiran Ma ; Xiaoli Huo ; Junjie Li ; Xiao Mu ; Jing Wen
Author_Institution :
Beijing Res. Inst., China Telecom Co. Ltd., Beijing, China
Abstract :
Fronthaul using CPRI between BBU and RRU equipments is carried by bare fiber currently. As BBUs are more and more centralized as a pool, tremendous amount of connections may exhaust the dark fiber resource. Various optical solutions are proposed to carry CPRI. As CPRI brings stringent physical requirements, optical transmission and access technologies need to be optimized and modified. In this paper, different optical solutions for fronthaul including OTN, passive WDM, active WDM and WDM-PON are analyzed and compared. Moreover, trials using these technologies to carry CPRI are conducted in commercial LTE environment. No worse physical performance is shown for optical solutions with more powerful OAM functions.
Keywords :
Long Term Evolution; passive optical networks; wavelength division multiplexing; BBU equipment; CPRI; OAM functions; OTN; RRU equipment; WDM-PON; active WDM; base band unit; commercial LTE environment; common public radio interface; fronthaul application; operation-and-maintenance; optical access technologies; optical solutions; optical transmission technologies; optical transport network; passive WDM; remote radio unit; stringent physical requirements; Optical fiber devices; Optical fibers; Passive optical networks; Wavelength division multiplexing; CPRI; Fronthaul; LTE; OTN; WDM; WDM-PON;
Conference_Titel :
Optical Communications and Networks (ICOCN), 2015 14th International Conference on
Conference_Location :
Nanjing
DOI :
10.1109/ICOCN.2015.7203716
