Periodic medium reservation timer mechanism for VoIP in IEEE 802.11 wireless LAN

The IEEE 802.11 wireless LAN is providing convenient mobile service and is gaining popularity for data applications in campus networks. So the IEEE 802.11-compliant wireless LAN equipments become dominant. Also, the voice service through wireless LANs has become an important issue. Quality-of-service (QoS) for voice-over-IP (VoIP) is also an important issue in IP networks. In this paper, we propose new medium access mechanism for VoIP packets to reduce the delay by medium access in IEEE 802.11 or IEEE 802.11e wireless LANs