Title :
Performance evaluation of IEEE 802.11 WLAN - high speed packet wireless data network for supporting voice service
Author :
Li, Changle ; Li, Jiandong ; Cai, Xuelian
Author_Institution :
State Key Lab. of ISN, Xidian Univ., Xi´´an, China
Abstract :
The IEEE 802.11 standard MAC is a hybrid protocol of random access and polling when both DCF (distributed coordination function) and PCF (point coordination function) are used. This paper evaluates the performance of the MAC protocol for integrated data and voice transmission with the two access mechanisms. By simulation, we evaluate the network performance for various values of the protocol parameters. Especially, voice traffic is sensitive to delay jitter and here we point out the main factors to influence it. Numerical results show that it is important to choose appropriate parameters and we should compromise the number of the voice stations and the data traffic throughput to get the enhanced performance of IEEE 802.11. Finally, the performance of protocol in theory is derived and is verified by the simulation results.
Keywords :
IEEE standards; access protocols; integrated voice/data communication; jitter; packet radio networks; telecommunication traffic; wireless LAN; IEEE 802.11 WLAN; IEEE standard; MAC protocol; access mechanism; data traffic throughput; delay jitter; distributed coordination function; high speed packet wireless data network; hybrid protocol; integrated data voice transmission; network performance; performance evaluation; point coordination function; polling; protocol parameter; random access; voice service support; voice station; voice traffic; Access protocols; Analytical models; Delay; Jitter; Media Access Protocol; Multiaccess communication; Telecommunication traffic; Throughput; Traffic control; Wireless LAN;
Conference_Titel :
Wireless Communications and Networking Conference, 2004. WCNC. 2004 IEEE
Print_ISBN :
0-7803-8344-3
DOI :
10.1109/WCNC.2004.1311659
