Synopsis
Collisions in wireless networks are a significant source of packet loss. Most medium access control techniques assume that a collision means total packet loss. However, we will show that this assumption is not always true, and we investigate how to leverage this fact. We first investigate fundamentally what happens when a collision occurs. We begin by deriving a physical layer algorithm that can identify which bits have been corrupted by collision. This algorithm accurately locates all collision induced errors when the channel signal to noise ratio is high enough for reliable communication. By leveraging this algorithm, we can produce a wide range of benefits. For example, by providing collision location information, we can enhance forward error correcting codes so that they may effectively completely remove the collision, saving a packet that would otherwise be discarded.
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About the Author
Sam Keene received his Ph.D in electrical engineering from Boston University in August 2008. His research interests include wireless communications and networking, signal processing and remote sensing. In fall of 2009, Dr. Keene will join The Cooper Union as an assistant professor in electrical engineering
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Collision Recovery techniques for Wireless LANs
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VDM Verlag Dr. Müller, 2009
ISBN 10: 3639149688
ISBN 13: 9783639149685
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Kartoniert / Broschiert. Condition: New. Dieser Artikel ist ein Print on Demand Artikel und wird nach Ihrer Bestellung fuer Sie gedruckt. Autor/Autorin: Keene SamSam Keene received his Ph.D in electrical engineering from BostonnUniversity in August 2008. His research interests includenwireless communications and networking, signal processing andnremote sensing. In fall of 2009, Dr. K. Seller Inventory # 4961894
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Collision Recovery techniques for Wireless LANs
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Taschenbuch. Condition: Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - Collisions in wireless networks are a significantsource of packet loss. Most medium access controltechniques assume that a collision means total packetloss. However, we will show that this assumption isnot always true, and we investigate how to leveragethis fact.We first investigate fundamentally what happens whena collision occurs. We begin by deriving a physicallayer algorithm that can identify which bits havebeen corrupted by collision. This algorithmaccurately locates all collision induced errors whenthe channel signal to noise ratio is high enough forreliable communication. By leveraging this algorithm,we can produce a wide range of benefits. For example,by providing collisionlocation information, we can enhance forward errorcorrecting codes so that they may effectivelycompletely remove the collision, saving a packet thatwould otherwise be discarded. Seller Inventory # 9783639149685
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Collision Recovery techniques for Wireless LANs
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