MIMO based network coding network

摘要

A wireless communication system includes an intermediate node, a first node and a second node. A apparatus for implementing MIMO based network coding, comprises the first node transmitting first data to the intermediate node, and the second node transmitting second data to the intermediate node. Both the first node and the second node may use spatial multiplexing or time division multiplexing or frequency division multiplexing on a common/different resource. The intermediate node receives the transmissions from the first node and second node, and performs network coding on the first data and second data using a predefined network coding scheme to produce network coded information. The intermediate node transmits the network coded information to the first node and second node using multi-user MIMO and each first or second node receives the MIMO transmissions from the intermediate node and applies network decoding procedures to recover the first data and second data.

主权项

1. An apparatus for implementing Multiple Input Multiple Output (MIMO) based network coding at an intermediate node in a wireless communication system, the wireless communication system including an intermediate node, a first node and a second node, the intermediate node including a plurality of antennas, the apparatus comprising:
means for receiving, by the intermediate node, first data from the first node; means for receiving, by the intermediate node, second data from the second node; means for storing the first data in a first queue and storing the second data in a second queue; means for performing network coding on at least a portion of the first data from the first queue and at least a portion of the second data from the second queue using a network coding scheme to produce network coded information; means for transmitting, by the intermediate node, the network coded information to the first node and second node using multi-user MIMO; means for scheduling transmissions of packets from the first node and second node to the intermediate node, wherein a higher priority for said scheduling is given to the first node or the second node based on whichever one of the first queue and the second queue has a shorter queue length.