A Clean-Slate Architecture for Reliable Data Delivery in Wireless Mesh Networks

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Executive Summary

In this paper, the authors introduce clean-slate architecture for improving the delivery of data packets in IEEE 802.11 wireless mesh networks. Opposed to the rigid TCP/IP layer architecture which exhibits serious deficiencies in such networks, they propose a unitary layer approach that combines both routing and transport functionalities in a single layer. The new Mesh Transmission Layer (MTL) incorporates cross-interacting routing and transport modules for a reliable data delivery based on the loss probabilities of wireless links. Due to the significant drawbacks of standard TCP over IEEE 802.11, they particularly focus on the transport module, proposing a pure rate-based approach for transmitting data packets according to the current contention in the network.

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