Title :
A new scheme to support voice call over wireless multi-channel MAC protocol
Author :
Trung, Tran Minh ; Mo, Jeonghoon
Author_Institution :
Sch. of Eng., Inf. Commun. Univ., Taejon, South Korea
Abstract :
This paper presents a new scheme to support voice calls over a wireless multichannel MAC protocol (VMcMAC). We increase the voice capacity of wireless networks by reducing protocol overhead and interference between voice traffic and data traffic. Voice calls are allocated to specific reserved channels in a distributed TDMA fashion. Each voice node visits the voice channel with a fixed frequency and then transmits a voice frame without sending control messages. With this scheme, we exploit multichannel nature of 802.11 standards to significantly reduce the protocol overhead and avoid most of the interference between voice and data traffic. Our simulation results show a significant improvement in the voice capacity of wireless Ad-hoc networks.
Keywords :
IEEE standards; Internet telephony; access protocols; ad hoc networks; telecommunication traffic; wireless LAN; 802.11 standards; TDMA; data traffic; protocol overhead reduction; voice call over wireless multichannel MAC protocol; voice calls over wireless multichannel MAC protocol; voice capacity; voice traffic; wireless Ad-hoc networks; wireless networks; Ad hoc networks; Communication system traffic control; Interference; Media Access Protocol; Telecommunication traffic; Traffic control; Vocoders; Wireless LAN; Wireless application protocol; Wireless networks; Ad-hoc network; Multi-channel; Voice capacity;
Conference_Titel :
Communications and Electronics, 2006. ICCE '06. First International Conference on
Conference_Location :
Hanoi
Print_ISBN :
1-4244-0568-8
Electronic_ISBN :
1-4244-0569-6
DOI :
10.1109/CCE.2006.350834
