Michael Galloway
ABSTRACT
This paper presents the problems of coexisting IEEE 802.11 protocols in the 2.4 GHz ISM band. The focus is on introducing IEEE 802.11n products into a heavily used IEEE 802.11g area. We show that the newer wireless n protocol has adverse effects on the transmission rate of the older, more commonly used protocols. The adoption of IEEE 802.11n in areas with high data rates might incur a negative impact on other low-power 2.4 GHz band communication protocols. This can be due to the fact that IEEE 802.11n can use multiple channels concurrently. Technologies such as sensor networks in buildings, Bluetooth communication, and other wireless protocols might sustain lower throughput in the presence of IEEE 802.11n wireless communication. The range of IEEE 802.11n can also be a factor with interference with multiple IEEE 802.11g networks that are out of range of each other.
- M. Petrova, L. Wu, P. Mahoen, J. Riihijarvi, "Interference Measurements on Performance Degradation between Colocated IEEE 802.11g/n and IEEE 802.15.4 Networks". Proceedings of the Sixth International Conference on Networking (ICN '07). IEEE, 2007. Google Scholar
Digital Library
- L. Qiu, Y. Zhang, F. Wang, M. Han, "A General Model of Wireless Interference". MobiCom '07. ACM, 2007. Google ScholarDigital Library
- Y. Li, L. Qiu, Y. Zhang, R. Mahajan, "Effects of Interference on Wireless Mesh Networks: Pathologies and a Preliminary Solution".Google Scholar
- J. Haughahl, "Inside 802.11n Wireless LANs". Bitcricket white paper, www.bitcricket.com. 2007.Google Scholar
- "Wi-Fi CERTIFIED 802.11n draft 2.0: Longer-Range, Faster-Throughput, Multimedia-Grade Wi-Fi Networks". Wi-Fi Alliance, 2007.Google Scholar
- M. Stanford, "How does 802.11n get to 600Mbps?" http://www.wirevolution.com/2007/09/07/how-does-80211n-get-to-600mbps/. September 7, 2007.Google Scholar
- L. Zheng and D. N. C. Tse. "Diversity and multiplexing: a fundamental tradeoff in multiple-antenna channels", IEEE Transactions on Information Theory, 49(5):1073--1096, 2003. Google ScholarDigital Library
- E. Gelal, G. Jakllari, and S. V. Krishnamurthy. "Exploiting Diversity Gain in MIMO Equipped Ad hoc Networks", In The Fortieth Asilomar Conference on Signals, Systems and Computers, 2006.Google ScholarCross Ref
- John Cox, "Monster Cisco 802.11n wireless net planned at Duke", Network World, http://www.networkworld.com/news/2008/022008-duke-cisco-11n.html, 02/20/2008Google Scholar
- Andrew Garcia, "More Details on the Duke 802.11n Deployment", http://blogs.eweek.com/signaling_it/content001/wireless/more_details_on_the_duke_80211n_deployment.html, February 20, 2008 4:38PM.Google Scholar
Index Terms
- Performance measurements of coexisting IEEE 802.11g/n networks
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