Method and apparatus for improved network coding in wireless communication system

A method of receiving network-coded data in a wireless communication system, the method comprising:

• transmitting an uplink packet to a transmitting node;
• receiving scheduling information shared by a group of links from the transmitting node, the group of links satisfying a listed range of channel quality information;
• receiving downlink data on which network coding (NC) is performed;
• and
• decoding the downlink data based on the scheduling information.

A transmitting node for performing a Network Coding (NC) in a wireless communication system, the transmitting node comprising:

• a controller configured to:
• receive uplink packets from a plurality of nodes through respective links,
• group the links into at least one group based on channel quality information, each group satisfying a listed range of channel quality information,
• perform the NC on downlink data for each group;
• and
• transmit each scheduling information shared by each group to the at least one respective group.

A receiving apparatus for receiving network-coded data in a wireless communication system, the receiving apparatus comprising:

• a controller configured to:
• transmit an uplink packet to a transmitting node by a transceiver,
• receive scheduling information shared by a group of links from the transmitting node, the group of links satisfying a listed range of channel quality information,
• receive downlink data on which network coding (NC) is performed, and
• decode the downlink data based on the scheduling information.