Title :
Fully Passive Remote Radio Head for Uplink Cell Densification in Wireless Access Networks
Author :
Schrenk, Bernhard ; Humer, Gerhard ; Stierle, Martin ; Leopold, Helmut
Author_Institution :
Dept. of Digital Safety & Security, Austrian Inst. of Technol., Vienna, Austria
Abstract :
A novel remote radio head (RRH) concept for fully passive radio access network (RAN) plants is demonstrated for short-range wireless networks. The joint transmission of data and energy through the optical fronthaul of RANs enables on-demand network densification through the deployment of distributed cells with low-complexity and low-power antenna sites along a passive optical network without electrical supply. The feasibility of the proposed RRH is demonstrated in uplink direction, employing low-noise amplification and analogue radio-over-fiber transmission over multimode fiber. Remote powering through the optical fronthaul is realized at a feed power of 120 mW.
Keywords :
amplification; antenna radiation patterns; cellular radio; data communication; mobile antennas; passive optical networks; radio access networks; radio-over-fibre; analogue radio-over-fiber transmission; data transmission; distributed cell deployment; energy transmission; low-complexity antenna; low-noise amplification; low-power antenna; multimode fiber; on-demand network densification; optical fronthaul; passive RAN plant; passive RRH; passive optical network; passive radio access network; passive remote radio head; power 120 mW; short-range wireless network; uplink cell densification; wireless access network; Nonlinear optics; Optical fibers; Optical pumping; Optical transmitters; Passive optical networks; Energy harvesting; Optical fiber communication; Radio communication equipment; Radio over fiber; Remote radio head; energy harvesting; optical fiber communication; radio over fiber; remote radio head;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2015.2399231
