In this paper, several multiple-input multiple-output (MIMO) techniques are studied for OFDM/A systems which have antennas connected to the base station with radio over fiber (RoF). The delay effects caused by the optical fibers on the fixed-beam transmit beamforming are studied via Monte Carlo simulations. Also the effect of combining RoF with other MIMO techniques in OFDM/A systems, like spat...

We experimentally investigate the performance of 60 GHz double sideband (DSB) radio over fiber (RoF) links that employ dispersion compensating fiber (DCF). Error free transmission of 3 Gbps signals over 1 m of wireless distance is reported. In order to overcome experimentally observed chromatic dispersion (CD) induced power fading of radio frequency (RF) signal, we propose a method for improvem...

In this paper, we have analyzed the performance of WDM Ethernet Passive Optical Network (EPON) with Radio over Fiber (RoF) optical link with the use of Dispersion compensating fiber at the transmission section. Performance of the system is improved with the use of DCF. The results are compared with and without DCF. The BER, Q factor and eye diagrams have been used for evaluating the performance...

Radio over Fiber (RoF) technology the integration of microwave and optical networks is a potential solution for increasing capacity and mobility as well as decreasing costs in the broadband access network. The concept of RoF means to transport information over optical fiber by modulating the light with radio frequency signal (RF) or at an intermediate frequency signal (IF) to take advantage of ...

Radio over Fiber (RoF) is a promising technology for short range transmission applications within multimode optical fiber. Typically, the RoF link employs a single mode fiber. But the signal power at the remote antenna become small due to the power loss in the electrical to optical and optical to electrical conversion process. Coupling efficiency of an electrical to optical converter can be imp...

Radio on Fiber (RoF) can realize a cost effective universal platform for heterogeneous wireless services. The concept of RoF can be realized by Radio on Free Space Optics (RoFSO), which can provide a free space for various types of wireless services in an optical wireless link. This paper proposes a new RoFSO system, describes its concept and features, and furthermore, shows some evaluation res...

A novel transport system, with directly modulating community antenna television (CATV) signal downstream and phase-remodulating radio-over-fiber (ROF) signal upstream, is proposed and experimentally demonstrated. By modulating multi-carriers CATV signal in amplitude domain and ROF signal in phase domain, a single optical wavelength is able to serve these two applications simultaneous. To be the...

We present numerical techniques that allow efficient modeling of the transport of broadband services over fiber-optic links in access networks using various technologies. Application examples of Hybrid Fiber Coax (HFC), Radio-over-Fiber (RoF) systems and 10-Gb/s Ethernet transport over multimode fiber are provided to demonstrate the value of simulation during the R&D and deployment phases of pr...

This work experimentally demonstrates the efficacy of the 2 × 2 multiple-input multiple-output (MIMO) technique for capacity improvement of a 60-GHz radio-over-fiber (RoF) system employing single-carrier modulation format. We employ frequency domain equalization (FDE) to estimate the channel response, including frequency response of the 60 GHz RoF system and the MIMO wireless channel. Using FDE...

In the present paper, Radio over fiber (ROF) transport systems have the potential to offer large transmission capacity, significant mobility and flexibility, as well as economic advantage due to its broad bandwidth and low attenuation characteristics. We have investigated parametrically and numerically the high performance of Radio over fiber communication systems over traditional optical commu...