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- W2486011405 abstract "Ubiquitous broadband internet coverage using WLANs has not been considered a viable option until recently. As WLANs have been originally designed to provide the last mile extension for wired networks, they typically require extensive wired infrastructure to access the backhaul network. Provisioning such extensive infrastructure is expensive and often time consuming. Moreover it may not be feasible to lay infrastructure at all locations. Thus, an ideal ubiquitous broadband coverage is a dream yet to become reality. With the increasing popularity and rising demand for more public Wi-Fi hotspots, network service providers are facing a daunting task due to limited availability of bandwidth and error-prone wireless medium. Wireless Mesh Networks (WMNs) offer an easy and economically viable alternative for providing broadband wireless internet connectivity. They are based on the multihop communication paradigms that dynamically form a connected network. However, its progress is hindered by many limitations of the multihop wireless communication such as restricted throughput, unfairness in forwarding and limited capacity. These limitations are primarily due to lack of efficient media access and routing protocols. Although, the widely deployed IEEE 802.11 standard for medium access supports multihop communication, it leads to myriad problems and its suitability for large scale networks is debatable. Even in a typical WLAN scenario, the 802.11’s DCF fails to provide fair services to uplink and downlink flows. We have conducted many experiments to demonstrate that using DCF in multihop networks leads to very unfair throughput distribution among the nodes. In this dissertation, we present novel algorithms to solve some of these problems and find that the proposed solutions are effective in mitigating the unfairness. In particular, we proposed implicit ACK based Bidirectional DCF to solve the unfairness in single hop networks and then designed two buffer management algorithms which effectively maintain fairness in a multihop WMN." @default.
- W2486011405 created "2016-08-23" @default.
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- W2486011405 date "2007-01-01" @default.
- W2486011405 modified "2023-09-23" @default.
- W2486011405 title "A cross-layered approach for achieving fairness in multihop wireless mesh networks" @default.
- W2486011405 hasPublicationYear "2007" @default.
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