Collision Codes: Decoding Superimposed BPSK Modulated Wireless Transmissions
Networking and Internet Architecture
2010-07-08 v1
Abstract
The introduction of physical layer network coding gives rise to the concept of turning a collision of transmissions on a wireless channel useful. In the idea of physical layer network coding, two synchronized simultaneous packet transmissions are carefully encoded such that the superimposed transmission can be decoded to produce a packet which is identical to the bitwise binary sum of the two transmitted packets. This paper explores the decoding of superimposed transmission resulted by multiple synchronized simultaneous transmissions. We devise a coding scheme that achieves the identification of individual transmission from the synchronized superimposed transmission. A mathematical proof for the existence of such a coding scheme is given.
Cite
@article{arxiv.1007.1100,
title = {Collision Codes: Decoding Superimposed BPSK Modulated Wireless Transmissions},
author = {Chuan Heng Foh and Jianfei Cai and Jalaluddin Qureshi},
journal= {arXiv preprint arXiv:1007.1100},
year = {2010}
}