Title :
On the feasibility of a CDMA overlay for personal communications networks
Author :
Milstein, Laurence B. ; Schilling, Donald L. ; Pickholtz, Raymond L. ; Erceg, Vinko ; Kullback, Marvin ; Kanterakis, Emmanuel G. ; Fishman, Douglas S. ; Biederman, William H. ; Salerno, D.C.
Author_Institution :
Dept. of Electr. & Comput. Eng., California Univ., San Diego, La Jolla, CA, USA
fDate :
5/1/1992 12:00:00 AM
Abstract :
Because of the continually increasing demand for mobile communications, it has been suggested that personal communication networks (PCNs) be established in the 1850-1990 MHz range. However, that band of frequencies is currently occupied by various microwave signals transmitted by users ranging from utility companies to state and local agencies. In order to allow both sets of users to occupy these frequencies as well as improve the spectral efficiency of this band, a spread-spectrum overlay is proposed, whereby a code-division multiple-access (CDMA) PCN would share the spectral band with the existing narrowband microwave traffic. The results of several field tests which have been designed to demonstrate the feasibility of an overlay of this type are discussed
Keywords :
code division multiple access; frequency allocation; microwave links; personal communication networks; radiofrequency interference; spread spectrum communication; 1850 to 1990 MHz; CDMA; PCN; UHF; code-division multiple-access; interference; microwave signals; mobile communications; personal communications networks; spectral efficiency; spread-spectrum overlay; Base stations; Communication networks; Frequency; Interference; Microwave measurements; Mobile communication; Multiaccess communication; Narrowband; Personal communication networks; Testing;
Journal_Title :
Selected Areas in Communications, IEEE Journal on
