VMcMAC: Voice Call Support over Wireless Multi-Channel MAC Protocol

• Published in: IEEE communications letters Vol. 11; no. 5; pp. 402 - 404
• Main Authors: Tran Minh Trung, Tran Minh Trung, Jeonghoon Mo, Jeonghoon Mo
• Format: Journal Article
• Language: English
• Published: New York, NY IEEE 01.05.2007; Institute of Electrical and Electronics Engineers; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Access methods and protocols, osi model; Ad hoc networks; Applied sciences; Channels; Communication system traffic control; Exact sciences and technology; Frames; Interference; Media Access Protocol; Messages; Networks; Simulation; Sociotechnical systems; Systems, networks and services of telecommunications; Telecommunication traffic; Telecommunications; Telecommunications and information theory; Teleprocessing networks. Isdn; Teletraffic; Time division multiple access; Traffic control; Traffic engineering; Traffic flow; Transmission and modulation (techniques and equipments); Voice; Wireless application protocol; Wireless networks; Access control; multi-channel; Wireless telecommunication; Teletraffic; Integrated voice/data communication; ad-hoc network; Time division multiple access; Simulation; Voice capacity; Telecommunication channels; Network protocol; Telephony; Access protocol; Ad hoc network; Message transmission
• ISSN: 1089-7798; 1558-2558
• DOI: 10.1109/LCOMM.2007.061898

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.