EPEC: An Error Position Estimating Coding scheme in wireless networks

Abstract

In wireless networks, determining the error bit positions within a packet at the receiver can improve the wireless retransmission efficiency in wireless communications. In this paper, we propose an Error Position Estimating Coding (EPEC) scheme based on Error Estimating Coding (EEC). Specifically, we divide data bits into several groups and indicate the group number individually to implement error position estimating at the receiver. Moreover, we encodes Cyclic Redundancy Check (CRC) with the initial EEC to reduce the leak probability of error position detection. Experimental results show that the error position estimation accuracy is nearly 100% when bit error rate (BER) is lower than 10-3. And the bandwidth for data retransmission saved by EPEC is up to 87% on average. In addition, the miss rate of EPEC is almost 0% while EEC is about 0.06%.