Title :
Packet voice transmission schemes for CDMA and TDMA systems
Author :
IShida, Jun ; Sumi, Yuji ; Akaiwa, Yoshihiko
Author_Institution :
Graduate Sch. of Inf. Sci. & Electr. Eng., Kyushu Univ., Fukuoka, Japan
Abstract :
We investigated packet transmission schemes for TDMA and CDMA systems under a condition that all systems assume the same bandwidth. In CDMA systems, packet dropping probabilities are improved by introducing carrier sensing and dividing frames into slots. The performance is improved further with a dynamic channel allocation method where packet transmission slot is allocated by base station. In TDMA systems, the performance without TPC is superior to that with TPC due to the capture effect. TDMA system shows better performance than CDMA system under the assumed conditions.
Keywords :
channel allocation; code division multiple access; integrated voice/data communication; mobile radio; multimedia communication; packet radio networks; power control; probability; telecommunication control; time division multiple access; wireless LAN; CDMA; TDMA; base station; carrier sensing; dynamic channel allocation; multimedia; packet dropping probabilities; packet voice transmission; performance; transmit power control; wireless LAN; Bandwidth; Base stations; Channel allocation; Electronic mail; Frequency; Information science; Interference; Multiaccess communication; Packet switching; Time division multiple access;
Conference_Titel :
Vehicular Technology Conference, 2002. Proceedings. VTC 2002-Fall. 2002 IEEE 56th
Print_ISBN :
0-7803-7467-3
DOI :
10.1109/VETECF.2002.1040443
