RobinHood: sharing the happiness in a wireless jungle

Today's Enterprise Wireless LANs are comprised of densely deployed access points. This paper proposes RobinHood, an interference nulling scheme that leverages the high density of the access points to enable multiple mobile devices to transmit simultaneously to multiple access points (APs), all within a single collision domain. RobinHood also leverages the capability of the APs to communicate with each other on the wired backbone to migrate most of the complexity to the APs, while keeping the design at the mobile clients simpler. Finally, we leverage the static nature of the access points to make RobinHood more practical in networks where the mobility of clients inhibit the use of traditional interference alignment schemes. Results from our trace-driven simulations show that RobinHood obtains a throughput improvement of 6.08x and 24.2x over omniscient TDMA and IEEE 802.11, respectively.