Abstract: There is provided a receiving apparatus including a plurality of antennas, a phase difference detection unit to detect a phase difference of each of a plurality of received signals received by the plurality of antennas, a phase adjustment unit to align phase of the plurality of received signals based on the phase difference detected by the phase difference detection unit, an adding unit to add the plurality of received signals with the phase aligned by the phase adjustment unit together, and a synchronous detection unit to perform synchronous detection using a signal obtained by addition in the adding unit.

Abstract: A wireless communication system includes a transmitting device and a receiving device each including a plurality of antennas. A plurality of streams are subjected to spatial multiplexing and are transmitted in a downlink in which packets are transmitted from the transmitting device to the receiving device. In the transmitting device, each of the plurality of transmission streams is divided into a plurality of bit-series groups having decoding characteristics to which priority levels are assigned, the bit-series groups are subjected to encoding processes and modulating processes in accordance with the priority levels and further subjected to weighting and synthesizing, and each of the plurality of transmission streams in which a plurality of bit series items are synthesized with one another is spatially multiplexed and transmitted.

Abstract: A wireless communication apparatus includes a sender identity evaluating portion that evaluates whether a sender of consecutively received packets is the same, and a physical layer control portion that controls a physical layer using an evaluation result if the sender identity evaluating portion evaluates that a sender of consecutively received packets is the same.