Energy-Efficient Multi-Hop Scheduling for Multi-Rate 802.15.3 WPANs

Abstract

We propose an energy-efficient multi-hop scheduling scheme for single-channel 802.15.3 networks which produces interference-avoiding schedules that are throughput and energy efficient. The scheduler replaces high-interference peer-to-peer transmission with low-interference multi-hop transmissions by interference-aware multi-hop routing, which reduces both interference and energy consumption of transmission. To maximize channel reuse, a multi-hop maximal-weighted-matching grouping scheme is applied to arrange concurrent transmissions. For successful signal decoding, the accumulated interference among concurrent transmissions is taken into account to ensure that signal reception occurs with sufficient SINR.