Title :
VMcMAC: Voice Call Support over Wireless Multi-Channel MAC Protocol
Author :
Trung, Tran Minh ; Mo, Jeonghoon
Author_Institution :
Sch. of Eng., Inf. & Commun. Univ., Taejon
fDate :
5/1/2007 12:00:00 AM
Abstract :
This paper presents a new scheme to support voice calls over a wireless multi-channel 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. Simulation results show a significant improvement in the voice capacity of wireless ad-hoc networks.
Keywords :
access protocols; ad hoc networks; telecommunication traffic; time division multiple access; voice communication; wireless channels; VMcMAC; data traffic; distributed TDMA; medium access control; time division multiple access; voice call support; voice channel; voice traffic; wireless ad-hoc network; wireless multichannel MAC protocol; Ad hoc networks; Communication system traffic control; Interference; Media Access Protocol; Sociotechnical systems; Telecommunication traffic; Time division multiple access; Traffic control; Wireless application protocol; Wireless networks;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2007.061898
