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    • 5. 发明申请
    • COMBINED SCHEDULING AND NETWORK CODING FOR WIRELESS MESH NETWORKS
    • 无线网络的组合调度和网络编码
    • WO2008122940A1
    • 2008-10-16
    • PCT/IB2008/051256
    • 2008-04-03
    • NOKIA CORPORATIONWESTPHAL, CedricYE, YingTANG, KevinVORA, NaheedSAHASRABUDHE, Meghana
    • WESTPHAL, CedricYE, YingTANG, KevinVORA, NaheedSAHASRABUDHE, Meghana
    • H04L12/56
    • H04W72/1257H04W84/18
    • An architecture by which combined scheduling and network coding can be used in mesh networks, and more particularly wireless mesh networks. In various embodiments, this architecture includes a scheduling MAC protocol for scheduling nodes in the mesh network in order to take advantage of network coding opportunities. The schedule takes advantage of these opportunities by assigning a gain to transmit packets based upon the number of packets that are transmitted concurrently and choosing a schedule which minimizes the gain over the scheduling horizon. Regarding the assigned gain, in one embodiment this value is one for basic non-encoded operations and two or more for encoded operations. A scheduling MAC protocol is also used to announce and arbitrate network coding opportunities by indicating which packets (as characterized by their transmission slot) are to be encoded with each other.
    • 可以在网状网络中使用组合调度和网络编码的架构,更具体地说,是无线网状网络。 在各种实施例中,该架构包括用于调度网状网络中的节点的调度MAC协议,以便利用网络编码机会。 该调度通过分配增益来利用这些机会,基于同时发送的分组的数量并选择最小化调度范围上的增益的调度来传送分组。 关于分配的增益,在一个实施例中,该值是用于基本非编码操作的值,对于编码操作,该值是两个或更多个。 调度MAC协议还用于通过指示哪些分组(由其传输时隙表征)将被彼此编码来通告和仲裁网络编码机会。