Impact of transient CSMA/CA access delays on active bandwidth measurements

WLAN devices based on CSMA/CA access schemes have become a fundamental component of network deployments. In such wireless scenarios, traditional networking applications, tools, and protocols, with their built-in measurement techniques, are usually run unchanged. However, their actual interaction with the dynamics of underlying wireless systems is not yet fully understood. A relevant example of such built-in techniques is bandwidth measurement. When considering WLAN environments, various preliminary studies have shown that the application of results obtained in wired setups is not straightforward. In this case, the contention for medium sharing among multiple users inherent to CSMA/CA access schemes has remarkable consequences on the behavior of and results obtained by bandwidth measurement techniques. In this paper, we focus on evaluating the effect of CSMA/CA-based contention on active bandwidth measurement techniques. As a result, it presents the rate response curve in steady state ...

• Type: Conference
• Year: 2009
• Where: IMC
• Authors: Marc Portoles-Comeras, Albert Cabellos-Aparicio, Josep Mangues-Bafalluy, Albert Banchs, Jordi Domingo-Pascual
• Keywords: Bandwidth Measurement Techniques, Bandwidth Measurements, IMC 2009, Internet Technology, Measurement Techniques