Collaborative collision detection with half-duplex radios
作者： J.J. Garcia-Luna-Aceves , Marcelo M. Carvalho
DOI: 10.1109/WCNC.2018.8377339
关键词:
摘要: We present and analyze CSMA/CDS, a simple extension of carrier-sense multiple access (CSMA) that attains collision detection (CD) through the collaboration among nodes endowed with half-duplex radios in wireless local area networks (WLAN). CSMA/CDS uses two mechanisms to provide feedback attempting transmit data packets concurrently. Using carrier sensing channel, node transmits common pilot before sending its packet, designated passive listener sends if it does not hear after detecting carrier. This ensures no collisions can occur. The throughput is analyzed compared performance CSMA priority ACKs (CSMA/CD), which assumes full-duplex transceivers. results show much better than comparable CSMA/CD.
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