Title :
Experimental evaluation of an adaptive antenna for a TDMA mobile telephony system
Author :
Strandell, Jonas ; Wennström, Mattias ; Rydberg, Anders ; Öberg, Tommy ; Gladh, Olle ; Rexberg, Leonard ; Sandberg, Eric ; Andersson, Bengt V. ; Appelgren, Magnus
Author_Institution :
Signals & Syst. Group, Uppsala Univ., Sweden
Abstract :
Measurements (at 1.8 GHz) of an adaptive DCS-1800 base station antenna, used in uplink only, are presented and analysed. Both laboratory measurements and outdoor field trials have been performed. The antenna improves the C/I ratio more than 30 dB. Calculations using measured data, assuming downlink performance equal to that of the uplink, show a spectral efficiency gain of 6 over present base station systems
Keywords :
adaptive antenna arrays; antenna testing; cellular radio; land mobile radio; radio links; radiofrequency interference; time division multiple access; 1.8 GHz; C/I ratio; DCS-1800 base station antenna; TDMA mobile telephony system; UHF; adaptive antenna; cell architectures; downlink performance; experimental evaluation; laboratory measurements; measured data; outdoor field trials; spectral efficiency gain; uplink; Adaptive arrays; Antenna measurements; Base stations; Downlink; Gain measurement; Laboratories; Mobile antennas; Performance evaluation; Performance gain; Time division multiple access;
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
DOI :
10.1109/PIMRC.1997.624367
