Title :
Measurement and Analysis of One-Way Delays over IEEE 802.16e/WiBro Network
Author :
Kim, Dongmyoung ; Cai, Hua ; Choi, Sunghyun
Author_Institution :
Sch. of Electr. Eng. & INMC, Seoul Nat. Univ., Seoul, South Korea
Abstract :
One-way delay is an important metric to evaluate the performance of communication networks. In this paper, we analyze the one-way delay performance of the commercial WiBro networks based on the traffic measurement. In measurements, much large delay is observed in the uplink than downlink, and we find that such asymmetry due mainly to the impact of the uplink bandwidth request mechanism. Due to this large uplink delay, the performance of commercial IEEE 802.16e service can be severely degraded. We also discuss some possible solutions to ameliorate this problem.
Keywords :
WiMax; mobile radio; telecommunication traffic; IEEE 802.16-WiBro network; communication networks; mobile WiMax; one-way delays; traffic measurement; uplink bandwidth request mechanism; uplink delay; Bandwidth; Delay effects; Performance analysis; Portable computers; Streaming media; Telecommunication traffic; Throughput; Time measurement; WiMAX; Wireless LAN;
Conference_Titel :
Vehicular Technology Conference Fall (VTC 2009-Fall), 2009 IEEE 70th
Conference_Location :
Anchorage, AK
Print_ISBN :
978-1-4244-2514-3
Electronic_ISBN :
1090-3038
DOI :
10.1109/VETECF.2009.5378848
