Date Added: Sep 2010
Improving capacity of wireless networks is critical and challenging. Although wireless standards such as IEEE 802.11 allow for the use of multiple channels at physical layer, current MAC and routing protocols of mobile ad hoc networks are mainly developed for running over one channel. In this paper, the authors design a unified MAC and routing framework to exploit the temporal and frequency resources to significantly improve the throughput of ad hoc networks. The joint channel assignment and routing scheme searches for an efficient transmission path taking into account the constraints due to the limited number of available channels and radio interfaces and the impact of MAC layer scheduling.