Title :
Spread spectrum for mobile communications
Author :
Pickholtz, Raymond L. ; Milstein, Laurence B. ; Schilling, Donald L.
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., George Washington Univ., Washington, DC, USA
fDate :
5/1/1991 12:00:00 AM
Abstract :
The characteristics of spread spectrum that make it advantageous for mobile communications are described. The parameters that determine both the performance and the total capacity are introduced, and an analysis which yields (approximately) the number of users that can simultaneously communicate, while maintaining a specified level of performance, is presented. Spread spectrum overlay, wherein a code-division multiple-access (CDMA) network shares a frequency band with narrow-band users, is analyzed, and it is seen that excision of the narrowband signals from the CDMA receivers before despreading can improve both performance and capacity
Keywords :
channel capacity; code division multiple access; mobile radio systems; spread spectrum communication; CDMA receivers; channel capacity; code-division multiple-access; frequency band; mobile radio; narrow-band users; narrowband signals; spread spectrum overlay; Frequency conversion; Helium; Mobile communication; Multiaccess communication; Narrowband; Performance analysis; Signal analysis; Signal processing; Spread spectrum communication; Wireless communication;
Journal_Title :
Vehicular Technology, IEEE Transactions on
