Title :
Distributed multiple access procedures to provide voice communications over IEEE 802.11 wireless networks
Author :
Sobrinho, J.L. ; Krishnakumar, A.S.
Author_Institution :
Bell Lab.-Lucent Technol., Nieuwegein, Netherlands
Abstract :
We investigate the provision of real-time voice communications to wireless LAN users. We consider wireless LANs that conform to the IEEE 802.11 standard. This standard specifies as its basic access mechanism a variant of CSMA with collision avoidance (CSMA/CA), which is not suitable for voice communications. We propose enhancements to the CSMA/CA protocol that allow voice traffic to be supported with the required quality of service. In the proposed scheme voice stations compete for access to the channel with short bursts of energy before sending their packets. A performance analysis of the new protocol is outlined. The results of the analysis, and simulations, are presented and discussed
Keywords :
IEEE standards; access protocols; carrier sense multiple access; performance evaluation; telecommunication standards; telecommunication traffic; voice communication; wireless LAN; CSMA/CA protocol; IEEE 802.11 standard; IEEE 802.11 wireless networks; access mechanism; collision avoidance; distributed multiple access procedures; packet transmission; performance analysis; quality of service; real-time voice communications; simulations; voice stations; voice traffic; wireless LAN; Access protocols; Collision avoidance; Ethernet networks; Laboratories; Multiaccess communication; Performance analysis; Propagation delay; Traffic control; Wireless LAN; Wireless networks;
Conference_Titel :
Global Telecommunications Conference, 1996. GLOBECOM '96. 'Communications: The Key to Global Prosperity
Conference_Location :
London
Print_ISBN :
0-7803-3336-5
DOI :
10.1109/GLOCOM.1996.591927
