Title :
Voice and data integration on TCP/IP wireless networks
Author :
Zahedi, A. ; Pahlavan, K.
Author_Institution :
Center for Wireless Inf. Network Studies, Worcester Polytech. Inst., MA, USA
Abstract :
The capacity of a carrier sense multiple access (CSMA) wireless LAN with voice and data services using the TCP/IP protocol is analyzed to obtain a lower bound for the capacity of the 802.11 wireless networks with voice and data services. The voice traffic is given higher priority over the data traffic to accommodate the delay requirement for an acceptable quality of service (QoS). This is implemented by assigning the TCP protocol for the data and the UDP protocol for the voice. The relationship between the data throughput and the number of the voice users supported in this environment is analyzed. The improved multi-band excitation (IMBE) voice encoding technique, proposed for the APCO-25 and used in the INMARSAT-M and AUSSAT mobile satellite communications, is adopted to provide a low transmission rate with an acceptable quality
Keywords :
carrier sense multiple access; data communication; delays; speech coding; telecommunication traffic; transport protocols; voice communication; wireless LAN; 802.11 wireless networks; APCO-25; AUSSAT mobile satellite communications; CSMA wireless LAN; INMARSAT-M; QoS; TCP protocol; TCP/IP wireless networks; UDP protocol; capacity; carrier sense multiple access; data services; data throughput; delay requirement; improved multi-band excitation; priority; quality of service; transmission rate; voice data integration; voice encoding technique; voice services; voice traffic; voice user numbers; Access protocols; Delay; Multiaccess communication; Quality of service; Speech analysis; TCPIP; Telecommunication traffic; Wireless LAN; Wireless application protocol; Wireless networks;
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.1997.631139
