{"product_id":"9781627054768","title":"Embracing Interference in Wireless Systems","description":"The wireless medium is a shared resource. If nearby devices transmit at the  same time, their signals interfere, resulting in a collision. In traditional  networks, collisions cause the loss of the transmitted information. For this  reason, wireless networks have been designed with the assumption that  interference is intrinsically harmful and must be avoided.    This book, a revised version of the author's award-winning Ph.D.  dissertation, takes an alternate approach: Instead of viewing interference  as an inherently counterproductive phenomenon that should to be avoided, we  design practical systems that transform interference into a harmless, and  even a beneficial phenomenon. To achieve this goal, we consider how wireless  signals interact when they interfere, and use this understanding in our  system designs. Specifically, when interference occurs, the signals get  mixed on the wireless medium. By understanding the parameters of this  mixing, we can invert the mixing and decode the interfered packets; thus,  making interference harmless. Furthermore, we can control this mixing  process to create strategic interference that allow decodability at a  particular receiver of interest, but prevent decodability at unintended  receivers and adversaries. Hence, we can transform interference into a  beneficial phenomenon that provides security.    Building on this approach, we make four main contributions: We present the  first WiFi receiver that can successfully reconstruct the transmitted  information in the presence of packet collisions. Next, we introduce a WiFi  receiver design that can decode in the presence of high-power  cross-technology interference from devices like baby monitors, cordless  phones, microwave ovens, or even unknown technologies. We then show how we  can harness interference to improve security. In particular, we develop the  first system that secures an insecure medical implant without any  modification to the implant itself. Finally, we present a solution that  establishes secure connections between any two WiFi devices, without having  users enter passwords or use pre-shared secret keys.","brand":"Association for Computing Machinery and Morgan \u0026 Claypool Publishers","offers":[{"title":"Default Title","offer_id":47157997306096,"sku":"9781627054768","price":42.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0737\/7593\/9824\/files\/9781627054768_p0.jpg?v=1763867890","url":"https:\/\/shop-qa.barnesandnoble.com\/products\/9781627054768","provider":"Barnes \u0026 Noble (DEV)","version":"1.0","type":"link"}