Multiple in multiple out network coded amplify and forward relaying scheme for three node bidirectional cooperation

摘要

A method and apparatus are described including receiving a first signal including first data in a first time slot of a first channel, receiving a second signal including second data in a second time slot of a second channel, determining a first pre-coding matrix, determining a second pre-coding matrix, applying the first pre-coding matrix to the first data to produce pre-coded first data, applying the second pre-coding matrix to the second data to produce pre-coded second data, generating a third signal by combining the pre-coded first data and the pre-coded second data and transmitting the third signal on the first channel and on the second channel. Also described are a method and apparatus including transmitting a first signal, receiving a second signal including a first training sequence and decoding the second signal by removing the first training sequence and removing the first signal.

主权项

1. A method performed at a first node, said method comprising:
transmitting, to a relay node, a first signal via a first channel, wherein said first signal includes first data; receiving, from the relay node, a second signal, wherein said second signal includes pre-coded data generated in the relay node by applying a first pre-coding matrix to said first data to maximize a joint channel capacity of the first channel and applying a second pre-coding matrix to second data received at the relay node from a second node via a second channel to maximize a joint channel capacity of the second channel, said first pre-coding matrix and said second pre-coding matrix having been determined by the relay node and said applying said first and second pre-coding matrix is accomplished by matrix multiplication; and decoding said second signal by removing said first signal.