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Code shift keying (CSK) was proposed to increase the transmission efficiency of DSSS systems, and to overcome the spreading gain versus data rate limitation. However, CSK modulation provides no multi-access capability, and degrades the flexibility of a spread spectrum system. In this work, a generalized M-ary DSSS modulation scheme, spreading code phase shift keying (SCPSK), is proposed to improve...
To solve the problem which the spectrum spread rate is held in the clock period and the sequence length of address code lies on the quotient of clock rate with information rate. A method which is based on the Balance Gold Sequences (BGS) is presented in Ultra-Wide Band communications. After presenting a mathematical model for the system, the theoretical bit error rate (BER) performance is presented...
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