Access Nets: Third International Conference on Access by Chonggang Wang

By Chonggang Wang

This booklet constitutes the completely refereed post-conference lawsuits of the 3rd overseas convention on entry Networks, AccessNets 2008, held in Las Vegas, NV, united states, in October 2008.

The 30 revised complete papers awarded including five invited papers have been conscientiously reviewed and chosen. The papers current unique and basic learn advances within the sector of entry networks, similar to hybrid entry networks, passive optical networks, fiber assisted instant for broadband entry networks, service ethernet and the evolving entry networks, instant entry networks dsl networks dynamic spectrum administration (dsm) successes, plc and dsl networks, in addition to entry community performance.

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Extra info for Access Nets: Third International Conference on Access Networks, AccessNets 2008, Las Vegas, NV, USA, October 15-17, 2008. Revised Papers (Lecture Notes ... and Telecommunications Engineering)

Example text

Point Coordination Function (PCF) is another technique that may be used in the MAC layer. In PCF, the data transmission is arbitrated in two modes: (i) centralized mode, where the AP polls each STA in a round-robin fashion, and (ii) contention-based mode, which works similarly to DCF. In addition, the Request To Send (RTS)/Clear To Send (CTS) mechanism is applied to solve the hidden node problem. 16 WiMAX standard was established in the frequency band of 10-66 GHz, providing up to 75 Mbps data rate line-of-sight (LOS) connections in both point-to-multipoint (PMP) and mesh modes.

As more fiber is deployed the network throughput decreases gradually. The aforementioned limitations of WLAN-based RoF networks can be avoided in so-called radio-and-fiber (R&F) networks [15]. While RoF networks use optical fiber as an analog transmission medium between a central control station and one or more RAUs with the central station being in charge of controlling access to both optical and wireless media, in R&F networks access to the optical and wireless media is controlled separately from each other by using in general two different MAC protocols in the optical and wireless media, with protocol translation taking place at their interface.

These similarities give rise to interesting convergence problems whose optimization is expected to lead to an improved FiWi network performance. In our proposed FiWi network, we take a different approach. Given the similarities of EPON and WiMAX, we argue that the two technologies are more likely to target the same network segment rather than being cascaded to cover different network segments. , right-of-way. Furthermore, recall from Section 1 that EPON networks will bring fiber close or all the way to end users.

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