Title :
Speech quality based performance evaluation of a partially loaded GSM system
Author :
Arregui, Antonio ; Dunlop, John
Author_Institution :
Dept. of Electron. & Electr. Eng., Strathclyde Univ., Glasgow, UK
Abstract :
Traditional system level studies are based on the evaluation of the carrier to interference ratio (CIR). However, it is very difficult to map CIR measurements into the actual quality experienced by mobile users. In this paper, the system performance is evaluated based on the probability of frame erasure of a 20 ms GSM speech segment, which is more directly related to speech quality. It is shown that through the use of random frequency hopping and partial loading, the sectorized 1/3 configuration provides maximum system capacity and better subjective speech quality
Keywords :
cellular radio; channel capacity; frequency hop communication; probability; radiofrequency interference; speech intelligibility; voice communication; CIR measurements; carrier to interference ratio; frame erasure probability; maximum system capacity; mobile users; partially loaded GSM system; random frequency hopping; sectorized 1/3 configuration; speech quality based performance evaluation; speech segment; subjective speech quality; system level studies; system performance; Bit error rate; Capacity planning; Cellular networks; Frequency; GSM; Interference; Speech analysis; System performance; System testing; Time division multiple access;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 1998. The Ninth IEEE International Symposium on
Conference_Location :
Boston, MA
Print_ISBN :
0-7803-4872-9
DOI :
10.1109/PIMRC.1998.731450
