Title :
Packet telephony support for the IEEE 802.11 wireless LAN
Author :
Liu, Hung-Huang ; Wu, Jean-Lien C.
Author_Institution :
Dept. of Electr. Eng., Nat. Taiwan Univ. of Sci. & Technol., Taipei, Taiwan
Abstract :
Packet telephony is one of the most promising applications in the Internet. In this paper, we propose a modified MAC protocol supporting voice traffic over the IEEE 802.11 WLAN. The proposed scheme adapts the power-saved mode of the IEEE 802.11 specifications in such a way that it approaches the TDM access mode carrying voice traffic, and is compatible with the IEEE 802.11 standard. Simulation results show that the proposed scheme does not degrade the performance of the IEEE 802.11 WLAN using the DCF and also provides good voice quality.
Keywords :
IEEE standards; access protocols; packet radio networks; quality of service; telecommunication standards; telephony; wireless LAN; IEEE 802.11 wireless LAN; WLAN; modified MAC protocol; packet telephony support; performance; power-saved mode; voice traffic; Access protocols; Degradation; Delay effects; Internet telephony; Media Access Protocol; Payloads; Quality of service; Time division multiplexing; Traffic control; Wireless LAN;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/4234.873488
