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 ...
Performance analysis of a JTIDS/link-16-type waveform transmitted over slow, flat Nakagami fading channels in the presence of narrowband interference Kao, Chi-Han (Monterey, California. Naval Postgraduate School, 2008., 2008-12);Link-16 is a tactical data link currently employed by the United States Navy, the Joint Services, and forces of North Atlantic Treaty Organization. It provides presumably secure and jam-resistant tactical information for ...
Performance of a JTIDS-type waveform with errors-and-erasures decoding in pulsed-noise interference Kao, Chi-Han; Robertson, Clark; Kragh, Frank (IEEE, 2009);The Joint Tactical Information Distribution System (JTIDS) is the Link-16 communication terminal. JTIDS is a hybrid direct sequence/frequency-hopping spread spectrum system and features Reed-Solomon (RS) codes for channel ...