Performance analysis and simulation of cyclic code-shift keying
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Cyclic code-shift keying (CCSK) is the baseband symbol modulation scheme used by Joint Tactical Information Distribution System (JTIDS), the communication terminal of Link-16. Since CCSK is non-orthogonal, an analytic evaluation of its performance in terms of probability of symbol error is nontrivial. In this paper, an analytic upper bound on the probability of symbol error of CCSK is derived for the 32-chip CCSK sequence chosen for JTIDS. The probability of symbol error obtained with the analytic method is compared with that obtained by Monte Carlo simulation for additive white Gaussian noise. The results show that the analytic method yields a tight upper bound. In addition to the 32-chip CCSK sequence chosen for JTIDS, a new 32-chip CCSK sequence with a smaller maximum off-peak cross-correlation is obtained and evaluated both analytically and by Monte Carlo simulation. The results obtained for the new CCSK sequence compare favorably with the sequence chosen for JTIDS.
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Kao, Chi-Han; Robertson, Clark; Kragh, Frank; Lin, Kyle Y. (Wiley, 2010-08-28);Cyclic code-shift keying (CCSK) is the baseband 32-ary symbol modulation scheme used by the Joint Tactical Information Distribution System (JTIDS), the communication terminal for Link-16. CCSK is not orthogonal and an ...
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