Receiver centric physical carrier sensing for vehicular ad hoc networks

Abstract

Most vehicular ad hoc networks use sender-centric carrier sensing where a sender determines the transmission timing through channel assessment. However, sender-centric carrier sensing suffers from both exposed and hidden terminal problems even with physical and virtual carrier sensing. In this paper, we propose a new receiver-centric carrier sense (RCS) technique where a receiver triggers packet transmissions based on local channel assessment. © 2013 IEEE.