Third generation mobile radio systems will provide unified mobile access to a wide range of services for the mass user market. Code division multiple access (CDMA) is one of the most viable access techniques to provide the flexible air interface required. Frequency hopped (FH) CDMA is investigated, and a system architecture is proposed to rival the more widely researched direct sequence (DS) approach. The results presented concur with other recent work in finding that the claimed advantages of DS can also apply to frequency hopping.
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