Abstract
A novel slotted dual channel medium access control (SDC-MAC) protocol is proposed for multihop wireless networks to maximize concurrent packet transmissions. By leveraging a slot-optimized scheme, the channel reservation and data packet transmissions can be simultaneously carried out on the control channel (CCH) and data channel (DCH) reducing packet collisions. Multichannel hidden and exposed terminal problems are also alleviated to greatly improve the channel access efficiency. Numerical results show that compared to the IEEE 802.11 DCF protocol, the SDC-MAC protocol has obvious performance improvement under the same total bandwidth.
