An Efficient Retransmission Based on Network Coding With Unicast Flows

Recently, network coding technique has emerged as a promising approach that supports reliable transmission over wireless loss channels. In existing protocols where users have no interest in considering the encoded packets they had over coding or decoding operations, this rule is inefficient and expensive. This paper studies the impact of encoded packets in the reliable unicast network coding via some theoretical analysis. Using the approach, receivers do not only store the encoded packets they overheard, but also report these information to their neighbors, such that users enable to take account of encoded packets in their encoding procedures as well as decoding operations.