As universal mobile telecommunications system (UMTS) and wireless local area network (WLAN) have complementary characteristics, convergence of UMTS and WLAN offer seamless wireless access service to users. In a converged UMTS/WLAN enhancing quality of service (QoS) for different services require call admission control and load balancing. This paper analyses the performance of wideband power bas...

To meet the explosive demands of high-capacity and broadband wireless access, modern cell-based wireless networks have trends, i.e., continuous increase in the number of cells and utilzation of higher frequency bands. It leads to a large amount of base stations (BSs) to be deployed; therefore, cost-effective BS development is a key to success in the market. In order to reduce the system cost, r...

The optical fiber is well adapted to pass multiple wireless signals having different carrier frequencies by using radio-over-fiber (ROF) technique. However, multiple wireless signals which have the same carrier frequency cannot propagate over a single optical fiber, such as wireless multi-input multi-output (MIMO) signals feeding multiple antennas in the fiber wireless (FiWi) system. A novel op...

Current paper characterizes the performance of three-radio-frequency-channels, orthogonal-frequency-division-multiplexed (OFDM) radio-over-fiber (RoF) transmission system in terms error-vector-magnitude and received optical signal power for a typical 10 GHz receiver obtained by comprehensive simulations. The impact transmitted OFDM channels' signal-to-noise ratio (SNR) is also considered. We de...

This work proposes an easy-implement quadruple-frequency optical carrier suppression millimeter-wave (OCS-MMW) generation scheme for the generation and transmission of a 2.5 Gbps downlink data stream in a Radio over Fiber (RoF) system, based two commercially Dual-Drive Mach– Zehnder Modulator (DD-MZM). Theoretical analysis for back-to-back (B-T-B) transmission and optical fiber transmission is ...

To provide broadband services in a single and low cost perform, the convergent optical wired and wireless access network is promising. Here, we propose and demonstrate a convergent optical wired and wireless long-reach access networks based on orthogonal wavelength division multiplexing (WDM). Both the baseband signal and the radio-over-fiber (ROF) signal are multiplexed and de-multiplexed in o...

We propose and experimentally demonstrate a cost-effective radio-over-fiber (RoF) system to simultaneously generate and transmit multiband and multi-gigabit 60-GHz millimeter wave (MMW) signals using frequency quintupling technique. Multiband signals at 56-GHz and 60-GHz are realized with two cascaded single-drive Mach-Zehnder modulators (MZMs), where phase control is not required. Furthermore,...

The increasing number of mobile terminals in home and in-building networks for indoor environments including offices, train stations and airports entails demanding bit-rate requirements with unprecedented increase in energy consumption. Considering the energy required per user terminal to access the Internet, more than half of the total energy used from the core network to the end user terminal...

Wireless Gigabit (WiGig) is a recent wireless local area network that operates at the 60-GHz band and supports transmission data rate of up to 20 Gbps. This paper demonstrates generation V-band millimeter-wave (mmWave) signal using new class InAs/InP quantum-dash laser-based comb source operating in L-band region. A 62.5-GHz mmWave generated with electrical linewidth phase noise characterizatio...