  We present a new family of one-coincidence sequence sets suitable for
frequency hopping code division multiple access (FH-CDMA) systems with
dispersed (low density) sequence elements. These sets are derived from
one-coincidence prime sequence sets, such that for each one-coincidence prime
sequence set there is a new one-coincidence set comprised of sequences with
dispersed sequence elements, required in some circumstances, for FH-CDMA
systems. Getting rid of crowdedness of sequence elements is achieved by
doubling the size of the sequence element alphabet. In addition, this doubling
process eases control over the distance between adjacent sequence elements.
Properties of the new sets are discussed.
