AN ALAMOUTI SPACE-TIME TRANSMISSION METHOD AND SYSTEM FOR ASYNCHRONOUS COOPERATIVE SYSTEM

摘要

The present invention relates to an Alamouti code transmission method and system for an asynchronous cooperative communication system. The present invention relates to an asynchronous coordination of OFDM scheme configured to enable a source node to communicate with a destination node via a first relay node or a second relay node. CLAIMS 1. In a communication system, a method for transmitting an Alamouti code for asynchronous cooperative communication, comprising: at a source node, generating a second OFDM data block contiguous with each other; At a source node, combining the OFDM data blocks to generate two OFDM combination blocks; At a source node, inserting a cyclic prefix into the two OFDM combination blocks for signal synchronization to generate an OFDM transport block and transmit it to a first relay node and a second relay node; In the first relay node, the signal received at the first relay node is encoded so that an Alamouti code is obtained at the destination node and transmitted to the destination node, and at the second relay node, the signal received at the second relay node is transmitted at the destination node. A fourth step of encoding the Alamouti code to be obtained and transmitting the same to the destination node; And a fifth step of, at the destination node, decoding the signal received at the destination node in the form of an Alamouti code.