Title :
Dimensioning of communication links for base-station and MSC interconnection in CDMA mobile communication systems
Author :
Elsayed, Khaled M F
Author_Institution :
Fac. of Eng., Cairo Univ., Cairo, Egypt
Abstract :
In CDMA mobile communication systems, voice is encoded and packaged in variable length packets that are transported between the mobile station and the switching center. While the packetization provides great flexibility in resource allocation, it poses a QOS challenge on voice. We discuss link dimensioning for a typical CDMA system. We consider a communication link connecting a CDMA base-station and mobile switching center. We analyze the resulting queueing system using large deviations theory and provide results for the minimum link capacity needed to support a given number of CDMA voice sources. Our results show the potential gain that can be achieved by statistical multiplexing of voice sources and discuss the effects of the statistics of the voice process on the multiplexer performance
Keywords :
channel capacity; code division multiple access; land mobile radio; packet radio networks; queueing theory; radio links; speech coding; statistical analysis; voice communication; CDMA mobile communication systems; MSC interconnection; QOS; base-station; communication links dimensioning; large deviations theory; minimum link capacity; mobile station; mobile switching center; multiplexer performance; queueing system; resource allocation; statistical multiplexing; variable length packets; voice encoding; voice process statistics; voice sources; Communication switching; Joining processes; Mobile communication; Multiaccess communication; Packaging; Packet switching; Performance gain; Queueing analysis; Resource management; Speech analysis;
Conference_Titel :
Computers and Communications, 1997. Proceedings., Second IEEE Symposium on
Conference_Location :
Alexandria
Print_ISBN :
0-8186-7852-6
DOI :
10.1109/ISCC.1997.616077
