Coping with Interference in Wireless Networks

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New Releases. Coping with Interference in Wireless Networks. Description Unlike wired networks where transmitters have no effect on receivers other than their own, in wireless networks we are limited by interference.

Seyed Javad Kazemitabar - Coping with Interference in Wireless Networks.pdf

The traditional routing methods are not optimal any more when it comes to a wireless medium. The maximum data rate on each link depends not only on the power in that link but also on the transmitted power from adjacent links. That is why the problem of power optimal routing needs to be solved jointly with scheduling. This suggests a cross layer design method as opposed to traditional networking where the algorithm for each layer is designed separately.

In Coping with Interference in Wireless Networks we introduce several methods engaging different layers of network to mitigate interference in a wireless network. Product details Format Paperback pages Dimensions x x 6.

Lecture 6 - Interference and System capacity

Illustrations note XV, p. Other books in this series. Add to basket. Multimedia Communication Technology Jens Ohm.

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Adaptive Antenna Arrays Sathish Chandran. Internet Naming and Discovery Joud S. Wireless Networks and Security Shafiullah Khan. Speech Spectrum Analysis Sean A. Digital Communication Apurba Das. Passive Eye Monitoring Riad I. Sensor Networks Gianluigi Ferrari. Back cover copy Unlike wired networks where transmitters have no effect on receivers other than their own, in wireless networks we are limited by interference. Table of contents Dedication. List of Figures. List of Tables. Coping with Interference in Physical Layer. Effect of Interference on Connectivity.

The Channel Model.

Coping with Interference in Wireless Networks : Seyed Javad Kazemitabar :

Simulation Results. Diversity Order in a Communication Scheme.

Multi-User Detection Using Alamouti. Modeling and Problem Formulation. Power Control, Scheduling and Routing Algorithm. Nonlinear vs. Simulation Results and Discussion. The Capacity Metric. The SER Metric.

Please don't change the channel

Now, long gone are those days of wired connections where your digital life was chained with long Ethernet cables. Nowadays, connectivity doesn't require a wire. We are in the Wi-Fi arena where most of our devices are connected wirelessly. Wi-Fi connections are the new industry standard. Up to this it sounds great, right? Undeniably, every scientific discovery, every technological breakthrough has its negative side.


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And, Wi-Fi interference is that curse with the Wi-Fi connection. The list is long. Any Wi-Fi interference causes inconsistent connection problems, loss of data packets during data transfer and a slashed overall network throughput. These connection hiccups are closely linked with productivity drops, lost work hours and ultimately, loss of business revenue. Cash-rich businesses can handle these issues easily, but this situation is like a dark abyss for the smaller and home businesses who have to depend on regular Wi-Fi networks.

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Wi-Fi interference is a technological phenomenon, and the chief cause behind this phenomenon is other Wi-Fi or radio frequency networks emitted by other electronic devices. The main causes of Wi-Fi interference are:. As your organization progresses through its DevOps journey, what are the best practices that successful teams use that you should follow? Download the guide to learn more. When Wi-Fi devices, mainly The interruptions can continue until the signals cease completely. This can happen when the Wi-Fi networks have too many interruptions in the form of Bluetooth, microwave and other RF signals generated from nearby electronic devices.

Now, this interference causes data packet loss which forces the Wi-Fi network to retransmit the lost data packets. These quickly occurring Wi-Fi retransmissions slow down the overall network throughput, which causes flaky performance for all the connected devices sharing a single Wi-Fi access point. The main way is to reduce interference and have stronger signals. This can be achieved by having a higher signal-to-noise ratio SNR and by mitigating interference with stronger and smarter antennas. New technological designs are creating tailor-made devices which can combat these Wi-Fi interference problems and can eventually eliminate them.

The first step in this procedure is to adopt a new Wi-Fi network standard, namely This Wi-Fi network standard is the first to provide gigabit data transfer. The maximum data transfer rate in this network is Mbps, rather than the existing Mbps in the Moreover, a technology has been introduced as a key to battle this Wi-Fi interference problem. Now, these multiple frames act as a Wi-Fi switch rather than a regular hub to the connected users.

Put simply, this technology enables existing Wi-Fi networks to support more users using a single AP. The exciting part of the story is that this new technology can be deployed along with existing Wi-Fi network standards which integrate two important aspects: maximizing network throughput while supporting older devices.

Moreover, this technology troubleshoots Wi-Fi problems like Wi-Fi interference and others to ensure high-level network performance. Additionally, there are now easy-to-use devices for identifying networking problems and their sources. Rather than simply mitigating the effects of Wi-Fi interference, it is now possible to determine its root cause and eliminate it. These devices even enable network managers to troubleshoot network-related problems remotely through a remote user interface for collaborative troubleshooting, making it easier than ever to identify problems and correct them.

The most effective way to address the problem of Wi-Fi interference is to eliminate the core issue.



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