Multi-Channel, Multi-Radio in Wireless Mesh Networks Master of Science Thesis in Computer Science and Engineering

Decreasing hardware prices enables increased performance in wireless networks to a low cost. By adding an extra WLAN radio card to existing single radio network platforms, the possibility to utilize additional frequencies arise and opens the world of multi-channel, multi-radio (MCMR). In this report, we investigate di erent approaches to make as good use of MCMR as possible. A hybrid technique using two radios, one receiving data and the other transmitting, is chosen and implemented. This requires a user-space application, modi cations to the wireless driver and the development of a Linux kernel bonding module handling the communication between user-space and drivers. Test results shows that the chosen method increase performance substantially compared to the standard single-channel, single-radio setup, which makes further development interesting as new faster wireless techniques becomes standard.