Analysis of Spreading Codes in Conjunction with Ambiguity Function for Inter Vehicular Communication

This paper discusses the possible application of a particular family of binary sequences, the De Bruijn ones, as spreading codes in a vehicular scenario, by evaluating their performance according to different analytical tools. In an unfriendly environment, such as the vehicular one, that poses several constraints on transmission techniques for their reliability, it might be useful to have a wide set of sequences to allocate different users, in order to ensure low Inter User Interference. If needed, the same spreading sequences can also be used as radar signatures for anti-collision applications, in a highly mobile environment. The simulations show that the proposed spreading sequence set provides adequate performance, comparable to those of more traditional sets, with the advantage of greater cardinality.