Ternary Zero Correlation Zone Sequences for Multiple Code UWB

We construct a ternary zero correlation zone (ZCZ) sequence set with both periodic and aperiodic ZCZ based on mutually orthogonal complementary sets. A multicode UWB system based on ternary ZCZ sequence sets can adapt its data rate by changing the size of the code set to satisfy different data rate requirements without compromising its BER performance. Multicode systems based on constructed ZCZ sequences can have a notably improved performance over a single code system employing m-sequences and over multicode systems based on comparable binary and ternary ZCZ sequences. We argue that the improvement over comparable binary and ternary ZCZ sequences is due to the unique periodic and aperiodic ZCZ property of the proposed sequence sets.