DocumentCode
316019
Title
A CDMA data overlay of the GSM network
Author
Widdowson, Terry
Author_Institution
BT Labs., Ipswich, UK
Volume
1
fYear
1997
fDate
1-4 Sep 1997
Firstpage
160
Abstract
The feasibility of providing a CDMA overlay of the GSM network is considered. The services to be provided by the proposed network are complimentary to those offered on the current GSM system. It is shown that without some form of mutual interference suppression the overlay is not viable, since neither systems has adequate carrier to interference ratio (CIR). However, relatively simple notch filters in the CDMA transmitter and receiver can increase the overall spectral efficiency by a factor of 3.32 for a 1 dB deterioration in baseline GSM CIR
Keywords
code division multiple access; 1 dB; CDMA data overlay; GSM network; carrier to interference ratio; interference suppression; notch filters; receiver; spectral efficiency; transmitter; Bandwidth; Base stations; Finite impulse response filter; Frequency; GSM; Interference suppression; Multiaccess communication; Radiofrequency interference; Telephone sets; Transmitters;
fLanguage
English
Publisher
ieee
Conference_Titel
Personal, Indoor and Mobile Radio Communications, 1997. Waves of the Year 2000. PIMRC '97., The 8th IEEE International Symposium on
Conference_Location
Helsinki
Print_ISBN
0-7803-3871-5
Type
conf
DOI
10.1109/PIMRC.1997.624383
Filename
624383
Link To Document