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Orthogonal space-time block coding over dirty paper channel: Outage capacity analysis

机译：脏纸通道上的正交空时分组编码：中断容量分析

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摘要

We analytically prove that the outage capacity of the multiple input multiple output (MIMO) which is affected by interference, that is non-causally available as well as the channel state information (CSI) for all users at the transmitter, has the free interference outage capacity. Specifically, Orthogonal space-time block coding (O-STBC) with two transmit antennas and arbitrary number of receive antennas is used for transmission and reception. We modify the random variable U which was proposed by Costa (1983) to account for the availability of the CSI at both the transmitter and receiver. Further, we use lattice dirty paper coding (DPC) to show that an interference free channel capacity can be achieved in the MIMO-OSTBC system. First, we derive the equivalent noise seen by the receiver using an equivalent lattice based dirty paper code. Then the optimal value of the power inflation factor is derived. Next, the channel capacity of the equivalent modulo lattice channel is computed. Finally, performance results in the case of various number of receive antennas are presented and showed that significant reduction in frame error probabilities can be obtained over a system that uses no interference cancellation.
机译：我们通过分析证明，受干扰影响的多输入多输出（MIMO）的中断能力（无因果可用）以及发射机所有用户的信道状态信息（CSI），具有免费的干扰中断能力容量。具体地，具有两个发射天线和任意数量的接收天线的正交空时分组编码（O-STBC）被用于发送和接收。我们修改了Costa（1983）提出的随机变量U，以解决CSI在发送器和接收器处的可用性。此外，我们使用晶格脏纸编码（DPC）来表明在MIMO-OSTBC系统中可以实现无干扰的信道容量。首先，我们使用基于等效点阵的脏纸代码来推导接收器看到的等效噪声。然后得出功率膨胀因子的最佳值。接下来，计算等效模格信道的信道容量。最后，给出了各种接收天线情况下的性能结果，结果表明，在不使用干扰消除的系统上，可以显着降低帧错误概率。

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