Title :
The Combined Effect of Signal Strength and Traffic Type on WLAN Performance
Author :
Sarkar, Nurul I. ; Sowerby, Kevin W.
Author_Institution :
Sch. of Comput. & Math. Sci., Auckland Univ. of Technol., Auckland
Abstract :
Using indoor propagation measurements, the combined effect of received signal strength (RSS) and traffic type (i.e., voice and video) on the performance of a typical WLAN is investigated. In the investigation, both ad hoc and infrastructure network scenarios are used. Measurement results obtained show that RSS has a significant effect on the playback delays of voice and video traffic, especially under higher bit rates. In addition, we study the relationship between wireless channel state and the user-perceived quality of audio and video streaming applications. Finally, we evaluate (by simulation) the number of simultaneous voice and video clients that an IEEE 802.1 lg AP can support. Results show that the performance of a typical IEEE 802.1 lg AP significantly deteriorates for N > 15 clients. Our findings show the practicality of deploying indoor WLANs for multimedia applications.
Keywords :
ad hoc networks; indoor communication; media streaming; telecommunication traffic; wireless LAN; wireless channels; IEEE 802.1 lg AP; WLAN performance; ad hoc network; audio streaming; indoor propagation measurements; infrastructure network; multimedia applications; playback delays; received signal strength; traffic type; video streaming; video traffic; voice traffic; wireless channel state; Application software; Bit rate; Communications Society; Delay effects; Radio propagation; Streaming media; System performance; Telecommunication traffic; Traffic control; Wireless LAN;
Conference_Titel :
Wireless Communications and Networking Conference, 2009. WCNC 2009. IEEE
Conference_Location :
Budapest
Print_ISBN :
978-1-4244-2947-9
Electronic_ISBN :
1525-3511
DOI :
10.1109/WCNC.2009.4917982
