Linear transformation matrices for distributed diversity
    1.
    发明申请
    Linear transformation matrices for distributed diversity 有权
    用于分布式多样性的线性变换矩阵

    公开(公告)号:US20080317104A1

    公开(公告)日:2008-12-25

    申请号:US12214634

    申请日:2008-06-20

    IPC分类号: H04B7/14

    CPC分类号: H04B7/022

    摘要: A signal for relay is received from a first node. From a local memory that stores K transform matrices (K being an integer greater than one) is selected a transform matrix that is associated with a relay rank order. The matrices define an optimal tradeoff of diversity gain versus spatial multiplexing. The received signal is transformed using the selected transform matrix, and the transformed signal is relayed over a wireless channel to a second node. In a particular embodiment the received signal is an input symbol vector of N consecutive symbols (N being an integer at least equal to two) and the transform linearly combines the N symbols of the input vector according to the relay rank order. In various embodiments the first node may give the rank order, it may be mutually agreed via signaling among the various relay nodes, or it may be based on an intrinsically generated random number.

    摘要翻译: 从第一节点接收用于中继的信号。 从存储K个变换矩阵(K为大于1的整数)的本地存储器中选择与继电器等级顺序相关联的变换矩阵。 矩阵定义了分集增益与空间复用的最佳权衡。 使用所选择的变换矩阵来变换接收到的信号,并且将经变换的信号通过无线信道中继到第二节点。 在特定实施例中,接收信号是N个连续符号(N是至少等于2的整数)的输入符号向量,并且该变换根据中继等级顺序线性组合输入向量的N个符号。 在各种实施例中,第一节点可以给出秩次,它可以通过各种中继节点之间的信令相互协商,或者它可以基于固有的随机数。