An empirical study on achievable throughputs of IEEE 802.lln devices
1
Issued Date
2009
Resource Type
Language
eng
Rights
Mahidol University
Suggested Citation
Vasaka Visoottiviseth, Thanakom Piroonsith, Siwaruk Siwamogsatham, วัสกา วิสุิทธิวิเศษ (2009). An empirical study on achievable throughputs of IEEE 802.lln devices. Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/10434
Title
An empirical study on achievable throughputs of IEEE 802.lln devices
Abstract
The empirical performance studies on the emerging
IEEE 802.11n technology by an independent and vendor-neutral
party have not really been explored. In this paper, we conduct
performance measurements for the IEEE 802.11n network using
a mixture of commercially available IEEE 802.11n devices from
various manufacturers. With the same standard 20-MHz channel
width configuration, the results demonstrate that IEEE 802.11n
significantly outperforms the IEEE 802.11g network. The
performance improvements of IEEE 802.11n are measured to be
roughly about 850/0 for the downlink UDP traffic, 680/0 for the
downlink TCP traffic, 50% for the uplink UDP traffic, and 90%
for the uplink TCP traffic. We also observe that the UDP
throughputs are largely imbalanced for the uplink and downlink
traffics in most test networks, while the downlink and uplink TCP
throughput results are quite balanced for all test networks. In
addition, the 40-MHz channel configurations only provide
marginal performance improvements. Unlike other existing work,
here we also capture and analyze the IEEE 802.11n packets
transferred during the performance tests in order to technically
explain the measured performance results. It is observed that
when the frame aggregation and block acknowledgement
mechanisms are utilized, the superior performance results are
achieved. However, the decisions on how and when to use these
mechanisms are very hardware dependent.
Description
WiNMee 2009 : The 5th International workshop on Wireless Network Measurements, Seoul, Korea.