Due to the culmination of the recent reapportionment of FCC frequency bands and the acceleration of wireless device complexity, simultaneous access to multiple diverse wireless frequency bands is becoming more of a reality. Naturally, the question arises: How can simultaneous access to a wide range of frequency bands with distinct propagation and communication capabilities improve current wireless network performance? In this CAREER research, a foundation is laid for exploiting multiple frequency bands for multihop wireless networks from per-link to network-wide decisions. To do so, this project uses experimental design, measurement analysis, analytical modeling, and embedded programming on an array of devices and testbeds from mobile phones globally reachable via application downloads to in-lab and in-the-field wireless infrastructures.