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Embracing Distributed MIMO in Wireless Mesh Networks

机译：在无线网状网络中拥抱分布式MIMO

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This paper proposes a novel routing protocol, DM, to achieve distributed spatial multiplexing gain in wireless mesh networks. It lets multiple nodes simultaneously send and receive different streams over each hop. To realize this goal, we propose an optimization framework that jointly optimizes spatial multiplexing, routing, and rate limits while taking into account wireless interference. We further design and implement a practical routing protocol that (i) enforces the optimized multiplexed routes, (ii) synchronizes transmissions from different senders, (iii) encodes and decodes analog signals to support simultaneous transmissions, and (iv) compensates for the frequency offset incurred over a multihop path. Using QualNet simulation and USRP implementation, we show it significantly out-performs state-of-the-art shortest path routing and opportunistic routing protocols. To our knowledge, this is the first routing protocol and prototype that achieves distributed spatial multiplexing in a real multihop network.
机译：本文提出了一种新颖的路由协议DM，实现无线网状网络中的分布式空间复用增益。它允许多个节点同时发送和接收每个跳数的不同流。为了实现这一目标，我们提出了一个优化框架，该框架在考虑无线干扰时共同优化空间复用，路由和速率限制。我们进一步设计并实现了一种实用的路由协议，（i）强制执行优化的多路复用路由，（ii）从不同发件人的传输同步，（iii）编码和解码模拟信号以支持同时传输，并且（iv）补偿频率偏移在多跳闸路径上产生。使用质量仿真和USRP实现，我们显着地显示出最先进的最短路径路由和机会路由协议。据我们所知，这是第一个路由协议和原型，实现了真实的多跳网络中的分布式空间复用。

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