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    • 1. 发明申请
    • PHYSICAL LAYER NETWORK CODING USING FORWARD ERROR CORRECTION CODES
    • 物理层网络编码使用前向纠错码
    • WO2012125943A1
    • 2012-09-20
    • PCT/US2012/029477
    • 2012-03-16
    • INTERDIGITAL PATENT HOLDINGS, INC.LIU, WeiminYANG, RuiPIETRASKI, Philip, J.
    • LIU, WeiminYANG, RuiPIETRASKI, Philip, J.
    • H04B7/155
    • H04B15/00H04B7/15H04B7/15521H04L1/0076
    • Two network nodes may exchange messages through a relay using physical-layer network coding combined with forward error correction coding (FEC). The relay determines a prime field order based on the channel condition and communicates the field order to the network nodes. Each network node encodes an outgoing message with linear codes over a field such as finite field of the field order, and transmits a signal carrying the encoded outgoing message. The relay receives a composite signal carrying the summation of the messages from the two network nodes. The relay decodes the composite signal and extracts a composite message with linear codes over finite field of field order, and broadcasts a signal carrying the composite message. Each network node receives the signal from the relay and extracts the message intended for it using linear subtraction over finite field of field order.
    • 两个网络节点可以通过使用与前向纠错编码(FEC)组合的物理层网络编码来通过中继交换消息。 继电器基于信道条件确定主场顺序,并将该场顺序传送到网络节点。 每个网络节点通过诸如场顺序的有限域的字段编码具有线性码的输出消息,并发送携带编码的输出消息的信号。 中继器接收携带来自两个网络节点的消息总和的复合信号。 继电器对复合信号进行解码,并通过有限场场顺序提取具有线性码的复合消息,并广播携带复合消息的信号。 每个网络节点接收来自中继器的信号,并通过有限场场顺序使用线性减法提取其预期的消息。