Patent ID: 8594230

Claim:
A device comprising: a signal generator processor configured to generate an initial unique word vector signal comprising a symbol sequence of length K symbols; a divider module configured to receive the initial unique word vector and to divide the initial unique word vector into N equal segments (each of length L); a matrix generator module configured: to receive the initial unique word vector divided into the N equal segments; to generate an orthogonal N×N first matrix H N×N ; to generate a second matrix H′ N×N , wherein each column comprises a repetition of the N segments of the initial unique word vector (each segment being placed in a respective row of the column); and to generate a third matrix UW N×K , resulting from an entrywise multiplication of each element of the first matrix by the respective element (unique word segment) of the second matrix; and wherein each column of the third matrix reflects a distinct unique word vector, wherein one column reflects the initial unique word vector, and the distinct unique word vectors of the third matrix are orthogonal to each other.