Paper
A Dual Channel Reservation MAC Protocol for Mobile Ad Hoc Networks
- Authors:
- Duoying Zhang; Wenqiang Zhang; Kai Liu
- Abstract
- To resolve hidden terminal and exposed terminal problems and improve the probability of simultaneous data packet transmissions for multihop mobile ad hoc networks (MANETs), we propose a novel time division multiple access (TDMA) based dual channel reservation (DCR) medium access control (MAC) protocol. The protocol achieves simultaneous collision-free contention reservation access and data packet transmission, and optimal load balance between the packet transmissions on reservation channel (RCH) and traffic channel (TCH) by appropriately adjusting the data rates of the RCH and TCH and guaranteeing the same interval of reservation slot on the RCH as that of data packet transmission slot on the TCH. In addition, the proposed dual reservation mechanisms of reservation slot and contention micro-slot greatly improve channel access and utilization efficiency. Finally, simulation results show that in the presence of the same total data rate, the DCR protocol obviously outperforms the IEEE 802.11 distribution coordination function (DCF) protocol in terms of multiple access performance.
- Keywords
- Mobile Ad Hoc Networks; Medium Access Control; Dual Channel; Reservation; Hidden Terminal Problem; Exposed Terminal Problem
- StartPage
- 604
- EndPage
- 613
- Doi