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In the IP-over-WDM networks, there are the mainly following four reasons for high energy consumption. Firstly, and most importantly, cooling of the IT equipment takes huge chunk from overall energy consumption. Secondly, over provisioning leads to redundant devices at all time. Thirdly, deployed networks are designed without consideration of energy. Lastly, data packet are routed without taking care...
We consider the networking benefit of selectively upgrading line optical amplifiers to Hybrid Erbium/Raman solution to reduce the number of optical-electrical-optical regenerators. We consider two different network topologies and eleven different hybrid amplification solutions.
Hybrid Wireless Optical Broadband Access Network has recently emerged as a promising architecture among broadband access networks. It has wireless at the front end and Passive Optical Network (PON) at the backend. It provides high capacity, flexibility, and reliability and is a cost effective solution. Much of the recent research work has been focused on wireless mesh part because of the rapid advancements...
Fiber-Wireless Access Networks (Fi-Wi) shows a promising future owing to the cost effective, high bandwidth and ubiquity features. Previous studies have addressed network layers to provide high data rates and lower delays to enhance the overall network quality without taking into consideration the end user QoS. In order to provide high QoS, transport layer services needs investigation as they work...
Access networks consume significant portion of the overall energy consumed by internet. The power consumption growth rate of internet is higher then any other consumer of energy. With the introduction of more and more bandwidth hungry applications, there is a huge pressure to reduce network energy consumption while still growing network capacity and functionality. We propose an energy aware routing...
In this paper we propose and investigate Redundancy Aware Routing Algorithm (RARA), a novel reactive routing algorithm that reduces the delays and provides better performance characteristics for the wireless front-end of Wireless Optical Broadband Access Networks (WOBAN). The simulated results have shown that at higher data rates above 6 Mbps, RARA gives a performance gain of up to 25 percent in terms...
IEEE 802.11 is mostly deployed standard of Wirelesss Local Aare Network (WLAN) today in the world. The distributed coordination function (DCF) is the primary medium access mechanism of these types of networks. DCF describes two methods for packet transmission that is, two way handshaking and basic access mechanism or request-to-send/clear-to-send (RTS/CTS). Although RTS/CTS is very efficient in terms...
Fiber-Wireless (FiWi) is the hybrid architecture of access networks. Since large amount of energy consumption of internet is due to the access networks, so in this paper Green FiWi (GFiWi) algorithm is proposed that switches the nodes of FiWi access networks to sleep mode in order to reduce energy consumption of FiWi networks not only at the optical but also at wireless part of FiWi. Simulation results...
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