UWEE Tech Report Series

On Loss Differentiation for CSMA-based Dense Wireless Network


UWEETR-2007-0002

Author(s):
H. Ma, J. Zhu and S. Roy

Keywords:
IEEE 802.11, CSMA, High Density (HD) WLAN, MAC, protocol, loss differentiation

Abstract

In this paper, we propose a novel method to differentiate packet loss based on interference energy and timing relative to desired signal for a CSMA-based dense wireless network. All measurements are conducted locally at transmitters, and therefore require no additional over-the-air overhead. Our method also separately estimates the PER (packet error rate) due to interference prior to or after the beginning of the desired signal, which allows for more efficient MAC(media access control) adaptation design.

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