Cambridge Core – Communications and Signal Processing – FiWi Access Networks – by Martin Maier. The evolution of broadband access networks toward bimodal fiber-wireless (FiWi ) access networks, described in this book, may be viewed as the endgame of. This article provides an up-to-date survey of hybrid fiber-wireless (FiWi) access networks that leverage on the respective strengths of optical.

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Ceiling function is applied to the division result in order to ensure the maximum number of frames, which the STA can transmit. Let B avg be the average buffer data, then the future estimated rate is given as: Through computer-based simulations, accesx demonstrate that our proposed scheme can significantly improve the QoS performance of the FiWi access networks for CPSs.

Optical network unit placement in Fiber-Wireless (FiWi) access network by Moth-F

Therefore, the Fiber-Wireless FiWi network [4][5]which integrates optical networks and wireless access networks attract more attention for supporting next generation CPSs in a future ubiquitous network. There are different mechanisms available to achieve energy efficiency at front end and back end sub networks.

The proposed algorithm mainly focuses on selecting lower data rate while maintaining transmission delay within specified limit during active state of a beacon interval from the set of available data rates for IEEE standard Citation Statistics Citations 0 10 20 30 ’10 ’12 ’14 ’16 ‘ On reception of beacon frame all the STAs switch themselves into active state.


This section presents the simulation results showing comparison of energy consumption for various fixed data rate schemes and EERAA. May 23, ; Revised: Citations Publications citing this paper. Front end sub-network is considered as IEEE In PSM a beacon interval consists of two states namely sleep and active states.

This facilitates reduction in active state energy consumption of front end. Link to citation list in Scopus.

Survey on Integrated Fiber-Wireless ( FiWi ) Access Network Architectures

Power consumption during active state P sl: Hence energy consumption is reduced by transmission on lower data rate than the higher data rate. References You do not have subscription access to this journal.

As explained in the earlier section, the existing DBA methods are not efficient because these methods cannot be used together with the utilization efficiency of the bandwidth and responsiveness for decreasing the transmission latency in the ONU. The results indicate that our proposed optimized FiWi routing algorithm OFRA outperforms minimum wireless hop and delay routing in terms of throughput for balanced and unbalanced traffic loads, at the expense of a slightly increased mean delay at small to medium traffic loads.

In dozing sleep mode the transmitter is turned off for sleep period but receiver remains in awaken state. Immediately after completion of data transmission STA moves into sleep state till the arrival of next beacon frame. The flexibility of FiWi networks in terms of energy saving becomes useful only if the QoS experienced by the users can be kept at acceptable levels.

Bandwidth allocation related research work have been carried out by other prominent researchers also.

Correia Optical Switching and Networking Skip to search form Skip to main content. Gigabit Routing Wavelength-division multiplexing Access access Passive optical network. During sleep time, station remains switched off and results in reduction in energy required. Optimal Pricing for Bandwidth Sharing.


For considered network we can also caculate energy required during sleep state. Therefore our algorithm tries to save the energy during active state and can transmit the data on lower data rate without affecting the performance in terms of delay. So proposed algorithm tries to save the energy during active state and transmits the data on netwirks data rate without affecting the performance in terms of delay. In summary, while the utilization efficiency of bandwidth and responsiveness of these two schemes i.

Moreover, also the excess bandwidth allocation increase the transmission latency of access data from other ONUs.

Currently, he is pursuing the M. The investigation from that work reported that the Risk-And-Delay-Aware Routing algorithm RADAR entworks, in contrast with other routing protocols in the wireless side, exhibits the best QoS performance in terms of throughput, latency, and load balancing.

It is the data rate which is calculated on the basis of traffic arrival pattern of previous N beacon intervals. TM-DBA has a factor for allocating bandwidth ranging from 1 to 3. Link to publication in Scopus. Also, in the work conducted by Suzuki et al.