NETWORK CODING GAIN OPTIMIZATION IN WIRELESS AD-HOC NETWORKS
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Abstract
Network coding is the technique which combines the packets at the intermediate node which there by reduces the number the transmissions that are to be send through the network and therefore improves the transmission efficiency. However it is waste to combine the packets together if the receiver is unable to decode the packets. This paper addresses how to find the coding solutions which guarantees decodability at the destination. As the number of transmissions are reduced we first show the coding gain obtained and provide a method which checks weather the coding pair can be separated at the destination or not. The one which provides the maximum coding gain is selected among all the decodable pairs. This algorithm can be applied to unicast and multicast traffic. Finally simulation results show that the numbers of transmissions are reduced especially in the multicast networks were we find many coding opportunities to apply network coding.
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