초록 ▼

Digital data is encoded using a modulus m converter to produce fractionally encoded words, where m is the nearest integer larger than 2c and c is a noninteger. The fractionally encoded words are mapped into a symbol constellation having m symbols to produce a two dimensional data signal. The data si

Digital data is encoded using a modulus m converter to produce fractionally encoded words, where m is the nearest integer larger than 2c and c is a noninteger. The fractionally encoded words are mapped into a symbol constellation having m symbols to produce a two dimensional data signal. The data signal is added to a two dimensional analog signal, which was obtained by encoding an input analog signal, to produce a combined two dimensional signal. The combined signal is modulated using QAM and then transmitted over a communication channel.

대표청구항 ▼

A communication method comprising the steps of: mapping data bits into a symbol constellation having a plurality of symbols to produce a data signal, each of said plurality of symbols representing a noninteger number of said data bits; adding an analog signal to said data signal to form a combined s

A communication method comprising the steps of: mapping data bits into a symbol constellation having a plurality of symbols to produce a data signal, each of said plurality of symbols representing a noninteger number of said data bits; adding an analog signal to said data signal to form a combined signal, wherein said data signal and said analog signal are simultaneously transmitted; modulating a carrier signal with said combined signal to form a modulated carrier signal; and transmitted said modulated carrier signal.