Title :
Diversity reception at the base station of a GSM/DCS1800 system
Author :
Chaaban, M.R. ; Chung, Y.H. ; Turkmani, A.M.D.
Author_Institution :
Dept. of Electr. Eng. & Electron., Liverpool Univ., UK
Abstract :
Personal communication networks (PCN) have recently been put into operation in the UK. The PCN/DCS1800 is expected to be a very high capacity system because smaller cells are intended to be used. The data rate of 270 kbits/sec exceeds the reciprocal of the decay spread often measured in mobile radio environments. Hence PCN can be regarded as a wideband transmission system and therefore the frequency-selective fading behaviour of the radio channel cannot be ignored. This paper shows possible improvements that can be obtained if PCN systems employ 2-branch selection or equal gain diversity techniques. The diversity schemes implemented in this study are totally based on the received signal strength. The results show that, at a BER of 0.01, 2-branch selection diversity can provide a gain of 5-6 dB for the various channels specified for the DCS1800 system. A further 1 dB improvement can be obtained using equal-gain combining
Keywords :
UHF radio propagation; broadband networks; cellular radio; digital radio; diversity reception; fading; land mobile radio; personal communication networks; telecommunication channels; 1800 MHz; 2-branch selection diversity; 270 kbit/s; 5 to 6 dB; BER; DCS1800 system; GSM system; PCN; PCN systems; UHF; base station; data rate; decay spread; diversity reception; equal gain diversity; equal-gain combining; frequency-selective fading; mobile radio environments; radio channel; received signal strength; wideband transmission system; Base stations; Bit error rate; Diversity reception; Fading; Frequency; GSM; Gain; Land mobile radio; Personal communication networks; Wideband;
Conference_Titel :
Vehicular Technology Conference, 1994 IEEE 44th
Conference_Location :
Stockholm
Print_ISBN :
0-7803-1927-3
DOI :
10.1109/VETEC.1994.345035
