Real-Time Support on IEEE 802.11 Wireless Ad-Hoc Networks: Reality vs. Theory

Mikyung KANG, Dong-In KANG, Jinwoo SUH
2009 IEICE transactions on communications  
The usable throughput of an IEEE 802.11 system for an application is much less than the raw bandwidth. Although 802.11b has a theoretical maximum of 11 Mbps, more than half of the bandwidth is consumed by overhead leaving at most 5 Mbps of usable bandwidth. Considering this characteristic, this paper proposes and analyzes a real-time distributed scheduling scheme based on the existing IEEE 802.11 wireless ad-hoc networks, using USC/ISI's Power Aware Sensing Tracking and Analysis (PASTA)
more » ... platform. We compared the distributed realtime scheduling scheme with the real-time polling scheme to meet deadline, and compared a measured real bandwidth with a theoretical result. The theoretical and experimental results show that the distributed scheduling scheme can guarantee real-time traffic and enhances the performance up to 74% compared with polling scheme.
doi:10.1587/transcom.e92.b.737 fatcat:ky3tayqbozcmdl7ybn24uwk5gu