Experimental study on performance of IEEE 802.11n and impact of interferers on the 2.4 GHz ISM band

Authors:
Sandra Fiehe;Janne Riihijärvi;Petri Mähönen
Affiliations:
RWTH Aachen University, Aachen, Germany;RWTH Aachen University, Aachen, Germany;RWTH Aachen University, Aachen, Germany
Venue:
Proceedings of the 6th International Wireless Communications and Mobile Computing Conference
Year:
2010

Citing 2
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Abstract

We have studied the performance of IEEE 802.11n in extensive measurement campaigns carried out in both interference-controlled and typical office environments. The results show that in a typical office environment significant performance improvement compared to earlier IEEE 802.11 technologies can be expected, but theoretically achievable bitrates were not reached. We also studied the sensitivity of IEEE 802.11n performance to interference from other technologies used in the 2.4 GHz ISM band, and found that 802.11n in general tolerates interference well. However, the results also show that a powerful enough narrowband interferer can have a significant negative impact and legacy 802.11 technologies operating in same region will cause performance degradation. The results on interference susceptibility and key role of channel bonding in the increase of throughput indicate that in new IEEE 802.11n deployments the 5 GHz ISM band should be preferred to the 2.4 GHz ISM band.