Patent ID: 8472305
Filing Date: 2013-06-25
Classification: H04B,H04L

Abstract:
1. A network coding-based data transmission method, comprising: receiving, by a receiving device having a processor, data packets, wherein the data packets comprise: a first data packet modulated by using a first constellation map, a second data packet modulated by using a second constellation map, and a third data packet modulated by using a third constellation map; wherein the first constellation map, the second constellation map, and the third constellation map are capable of minimizing a bit error rate of received signals, and a bit stream transmitted in the third data packet c is an Exclusive-OR result of a bit stream transmitted in the first data packet a and a bit stream transmitted in the second data packet b, that is, c=a⊕b; and obtaining, by the receiving device, original transmitted data from the received data packets; wherein the first constellation map, the second constellation map, and the third constellation map are a combination of constellation maps in a set candidate constellation map set when an average theoretical bit error rate of the first data packet and the second data packet is minimum.