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The construction of complementary sets (CSs) of sequences with different set size and sequence length become important due to its practical application for OFDM systems. Most of the constructions of CSs, based on generalized Boolean functions (GBFs), are of length 2&#x03B1; (&#x03B1; is a natural number). Recently some works have been reported on construction of CSs having lengths non-power of two, i.e., in the form of 2m-1 + 2v(m is natural number, 0 &#x2264; v &lt;; m), N + 1 and N + 2, where N is a length for which q-ary complementary pairs exist. In this letter, we propose a construction of CSs of lengths M + N for set size 4n, using concatenation of CSs of lengths M and N, and set size 4n, where M and N are lengths for which q-ary complementary pairs exists. Also, we construct CSs of length M + P for set size 8n by concatenating CSs of lengths M and P, and set size 8n, where M and P are lengths for which q-ary complementary pairs and complementary sets of size 4 exists, respectively. The proposed constructions cover all the previous constructions as special cases in terms of lengths and lead to more CSs of new sequence lengths which have not been reported before.

Generalized Constructions of Complementary Sets of Sequences of Lengths Non-Power-of-Two