Ternary Complementary Sets for Orthogonal Pulse based UWB

Ternary complementary set based UWB signaling employing a set of orthogonal chip pulses is proposed. Each user transmits the same information bit over a set of parallel channels each characterized by an orthogonal pulse and a spreading sequence from a ternary complementary set. Ternary complementary sets assigned to two users are mutually uncorrelated in the complementary sense. Hence, the multipath interference as well as multiple access interference are mitigated. Furthermore, sequence length selection is significantly more flexible than for corresponding binary signaling techniques. Thus, the proposed signaling is in particular suitable for adaptive high rate systems. Construction methods for ternary mutually orthogonal complementary sets are also included.