Infrastructure-based MAC in wireless mobile ad-hoc networks

- The IEEE 802.11 standard is the most popular Medium Access Control (MAC) protocol for wireless local area networks. However, in an ad-hoc environment, the Point Coordination Function (PCF), defined in the standard, cannot be readily used. This is due to the fact that there is no central authority to act as a Point Coordinator (PC). Peer-to-peer ad-hoc mode in the IEEE 802.11 standard only implements the Distributed Coordination Function (DCF). In this paper, an efficient and on-the-fly infrastructure is created using our proposed Mobile Point Coordinator (MPC) protocol. Based on this protocol, we also develop an efficient MAC protocol, namely MPC-MAC. Our MAC protocol extends the IEEE 802.11 standard for use in multihop wireless ad-hoc networks implementing both the DCF and PCF modes of operation. The goal, and also the challenge, is to achieve QoS delivery and priority access for real-time traffic in adhoc wireless environments while maintaining backward compatibility with the IEEE ...

• Type: Journal
• Year: 2005
• Where: ADHOC
• Authors: Hossam S. Hassanein, Tiantong You, Hussein T. Mouftah
• Keywords: ADHOC 2005, IEEE 802.11, IEEE 802.11 Standard, MAC Protocol