Optimizing for high channel capacity of multiple-hop MIMO relay system with MAC-PHY cross layer

For the high end-to-end channel capacity, the amplify-and-forward(AF) scheme multiple-hop MIMO relays system is considered. The distance between each transceiver and the transmit power of each relay node are optimized to prevent some relays from being the bottleneck and guarantee the high end-to-end channel capacity. However, when the system has no control on Mac layer, the interference signal is in account the performance of system is deteriorated. The specific control transmission for each relay is analyzed. According to the access control, the high channel capacity is obtained. However, the delay time is increased. The result of decode-and-forward scheme is analyzed to compare with AF scheme.

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