Title :
The Throughput Analysis of IEEE 802.11a WLAN with Low-Rate Access Nodes
Author :
Bing Zhang ; Zehua Gao ; Feng Gao ; Xiao Zeng ; Dahsiung Hsu
Author_Institution :
Key Lab. of Inf. Photonics & Opt. Commun., Beijing Univ. of Posts & Telecommun., Beijing, China
Abstract :
The function of multi-rate support (14 rate ranks from 1Mbps to 54Mbps) in PHYs is prescribed in IEEE 802.11 protocol. To analyze the serious affects to the throughput of whole networks caused by the low- rate access nodes, a precise algorithm is proposed based on the improved Markov model in DCF protocol. The throughput of WLAN is conducted with low-rate access nodes, and the simulation results with NS2 prove the conclusion. After that the optimization methods are proposed for the low-rate access nodes, and all these are the effective references for network planning and optimization.
Keywords :
Markov processes; access protocols; optimisation; subscriber loops; telecommunication network planning; wireless LAN; DCF protocol; IEEE 802.11 protocol; IEEE 802.11a WLAN; NS2 simulation; PHY; bit rate 1 Mbit/s to 54 Mbit/s; improved Markov model; low-rate access node; network planning; optimization method; throughput analysis; Analytical models; Delay; Delay effects; Markov processes; Protocols; Throughput; Wireless LAN;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing (WiCOM), 2012 8th International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-61284-684-2
DOI :
10.1109/WiCOM.2012.6478721
