Algorithm of protocol header recovery based on iteration between layers

Abstract

In spite of recent progress of the wireless communication technology, the high bit error rate always restrains its better transmission efficiency. Especially, the errors in protocol header would incur the discard of valid information in the check-failure packets. In order to improve the utilization of transmitted data, an iterative header recovery scheme between two associated layers is proposed in this paper exploiting the helpful inherent redundancy of network protocol stacks, raising the anti-noise ability of the protocol header. It develops a novel comprehension of two layers error detecting codes after regarding them as a special concatenated encoding model. With the extrinsic information of the two layers exchanging within each other, better performance of protocol header correction can be achieved. Simulation results show that the proposed algorithm outperforms the original ones which just make use of the error detecting codes in a single layer.