Title :
Experimenting with real time applications in an IEEE 802.11b ad hoc network
Author :
Karapantelakis, Thanasis ; Iacovidis, Giorgos
Author_Institution :
Dept. of Comput. Sci., Crete Univ.
Abstract :
In this study we set up an ad-hoc testbed of heterogeneous devices and investigate the behavior of video and audio streaming over the TCP protocol. The metrics for measuring the quality of service (QoS) of the TCP flows, are TCP round trip time (RTT) and signal to noise ratio (SNR). Our findings indicate an inverse correlation between RTT and SNR, with the first value increasing exponentially after a lower SNR threshold. Device movement and large distances are two factors affecting RTT negatively. Finally we show that the impact of background traffic on these streaming applications is prominent, as it increases RTT significantly
Keywords :
ad hoc networks; mobile radio; quality of service; transport protocols; wireless LAN; IEEE 802.11b ad hoc network; audio streaming; quality of service; round trip time; signal to noise ratio; transport control protocol; video streaming; Ad hoc networks; Computer networks; Intelligent networks; Protocols; Quality of service; Signal to noise ratio; Streaming media; Telecommunication traffic; Testing; Time measurement;
Conference_Titel :
Local Computer Networks, 2005. 30th Anniversary. The IEEE Conference on
Conference_Location :
Sydney, NSW
Print_ISBN :
0-7695-2421-4
DOI :
10.1109/LCN.2005.67
