Using Receiver Squelch Techniques to Create Scalable Cellular Networks in Capacity Oriented IEEE 802.11 Deployments

 
 
 
 

Using Receiver Squelch Techniques to Create Scalable Cellular Networks in Capacity Oriented IEEE 802.11 Deployments

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Title: Using Receiver Squelch Techniques to Create Scalable Cellular Networks in Capacity Oriented IEEE 802.11 Deployments
Author: Blosco, John
Description: With the recent growth of IEEE 802.11 devices in the industrial and home markets, many companies and households have adopted wireless networks because of their ease of deployment and mobile connectivity. As the popularity and deployment of IEEE 802.11 devices continue to increase, the price of the devices will decrease. Users will demand higher dedicated throughput, resulting in the need for more Access Points (APs) in a deployment to increase its wireless capacity. This will create the need to effectively control the access points to provide maximum throughput performance of the entire system for large scale deployments. In this research, an inefficiency in the current IEEE 802.11 protocol resulting from recommended threshold levels for channel access is identified and analyzed. The cause of this inefficiency is first investigated in detail, and the variables affecting it are presented. The extent to which the throughput degradation affects current IEEE 802.11 systems is then considered, based on today’s channel access level settings. With analytical simulations, the system performance is first evaluated considering only access point interference in a non-shadowed environment. Client interference and signal shadowing is then considered to more accurately model a real world environment. Finally, the thesis conducts experiments in multiple environments, showing measured throughput improvement based on the threshold adjustments presented. The results are compared with a simulation model in order to account for the concepts and theory presented in the research.
Permanent Link: http://rave.ohiolink.edu/etdc/view?acc_num=akron1159976343
http://hdl.handle.net/2374.OX/3979
Date: 2006

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