Radio Frequency Coding

In the current wireless standards around 25% of the redundancy included in the transmitted signal is not devoted to improve the quality of the symbol detection. Namely, this redundancy helps to provide a realistic path to accomplish fundamental support to the symbol decoder, enabling synchronism, access, channel estate estimation, noise and interference removal. In this paper, we study the redundancy that must be added to the radiated symbols in order to facilitate the mentioned physical layer tasks of communication receivers. This paper calls it Radio Frequency Coding (RFC), and with it, the proposal is to systematically review in the non-finite field the different channel coding techniques. Specifically, this paper focuses on linear block RFC. First, it is introduced to support the massive access needs of the future 5^th Generation (5G) and to improve the access in the Long Term Evolution (LTE) legacy standard. Second, linear polar coding is proposed to facilitate network slicing, which is one of the most innovative aspects of the 5G architecture.