Computer Book » network http://www.the-computer-book.com Computer and online product guide Sat, 04 Feb 2012 11:18:50 +0000 http://wordpress.org/?v=2.8.1 en hourly 1 Leveraging Service Discovery in MANETs with Mobile Directories http://www.the-computer-book.com/uncategorized/leveraging-service-discovery-in-manets-with-mobile-directories/ http://www.the-computer-book.com/uncategorized/leveraging-service-discovery-in-manets-with-mobile-directories/#comments Wed, 01 Feb 2012 14:26:17 +0000 admin http://www.the-computer-book.com/uncategorized/leveraging-service-discovery-in-manets-with-mobile-directories/ This paper advances a novel approach that facilitates the location of services and/or digital assets advertised by directories in a Mobile Ad hoc Network. The proposed Service Directory Placement Protocol (SDPP) improves scalability and reduces packet traffic overhead by advancing a multi-directory extension of an earlier approach that relied on the migration of a single directory through the network. This investigation demonstrates that modelling the directory replication problem as a Semi-Markov Decision Problem solved by means of a Reinforcement Learning technique known as Q-learning improves the performance of SDPP

]]> http://www.the-computer-book.com/uncategorized/leveraging-service-discovery-in-manets-with-mobile-directories/feed/ 0 Lifetime Maximization in Wireless Sensor Networks Using a Mobile Sink with Nonzero Traveling Time http://www.the-computer-book.com/uncategorized/lifetime-maximization-in-wireless-sensor-networks-using-a-mobile-sink-with-nonzero-traveling-time/ http://www.the-computer-book.com/uncategorized/lifetime-maximization-in-wireless-sensor-networks-using-a-mobile-sink-with-nonzero-traveling-time/#comments Wed, 30 Nov 2011 15:25:38 +0000 Master http://www.the-computer-book.com/uncategorized/lifetime-maximization-in-wireless-sensor-networks-using-a-mobile-sink-with-nonzero-traveling-time/ It is a known phenomenon that in a wireless sensor network, sensors communicating directly with a sink deplete their energy faster than the others. As a result, the so-called neighboring sensors can die, disconnecting some of the sinks from the rest of the network, even though most of the sensors are still fully functional. One possible remedy is to balance the relaying load of the sensors using mobile sinks and controlling their mobility, which has attracted the interest of researchers

]]> http://www.the-computer-book.com/uncategorized/lifetime-maximization-in-wireless-sensor-networks-using-a-mobile-sink-with-nonzero-traveling-time/feed/ 0 How to Find IP Address of Another Computer http://www.the-computer-book.com/uncategorized/how-to-find-ip-address-of-another-computer/ http://www.the-computer-book.com/uncategorized/how-to-find-ip-address-of-another-computer/#comments Wed, 09 Nov 2011 19:05:02 +0000 Master http://www.the-computer-book.com/uncategorized/how-to-find-ip-address-of-another-computer/ So let’s say you are connected to your local network at home or at work and you need to figure out the IP address of another computer on the network. How do you do it? Well there are a couple of ways you can determine the IP address of a different computer on the network

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How to Find IP Address of Another Computer

]]> http://www.the-computer-book.com/uncategorized/how-to-find-ip-address-of-another-computer/feed/ 0 How to Find IP Address of Another Computer http://www.the-computer-book.com/uncategorized/how-to-find-ip-address-of-another-computer/ http://www.the-computer-book.com/uncategorized/how-to-find-ip-address-of-another-computer/#comments Wed, 09 Nov 2011 19:05:02 +0000 admin http://www.the-computer-book.com/uncategorized/how-to-find-ip-address-of-another-computer/ So let’s say you are connected to your local network at home or at work and you need to figure out the IP address of another computer on the network.

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How to Find IP Address of Another Computer

]]> http://www.the-computer-book.com/uncategorized/how-to-find-ip-address-of-another-computer/feed/ 0 No Wireless Networks Available in Windows 7? http://www.the-computer-book.com/uncategorized/no-wireless-networks-available-in-windows-7/ http://www.the-computer-book.com/uncategorized/no-wireless-networks-available-in-windows-7/#comments Fri, 04 Nov 2011 12:16:03 +0000 Master http://www.the-computer-book.com/uncategorized/no-wireless-networks-available-in-windows-7/ One problem I have run into on several Windows 7 machines is not getting any wireless networks when I go to the wireless network manager! Usually, when you click on Network icon in the task bar, you get a list of wireless networks and then just connect. However, there are times when you will see Post from: No Wireless Networks Available in Windows 7?

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No Wireless Networks Available in Windows 7?

]]> http://www.the-computer-book.com/uncategorized/no-wireless-networks-available-in-windows-7/feed/ 0 Surveying Port Scans and Their Detection Methodologies http://www.the-computer-book.com/uncategorized/surveying-port-scans-and-their-detection-methodologies/ http://www.the-computer-book.com/uncategorized/surveying-port-scans-and-their-detection-methodologies/#comments Fri, 30 Sep 2011 14:09:53 +0000 admin http://www.the-computer-book.com/uncategorized/surveying-port-scans-and-their-detection-methodologies/ Scanning of ports on a computer occurs frequently on the Internet. An attacker performs port scans of Internet protocol addresses to find vulnerable hosts to compromise

]]> http://www.the-computer-book.com/uncategorized/surveying-port-scans-and-their-detection-methodologies/feed/ 0 The Microcosmic Model of Worm Propagation http://www.the-computer-book.com/uncategorized/the-microcosmic-model-of-worm-propagation/ http://www.the-computer-book.com/uncategorized/the-microcosmic-model-of-worm-propagation/#comments Fri, 30 Sep 2011 14:09:53 +0000 Master http://www.the-computer-book.com/uncategorized/the-microcosmic-model-of-worm-propagation/ Each year, large amounts of money and labor are spent on patching the vulnerabilities in operating systems and various popular software to prevent exploitation by worms. Modeling the propagation process can help us to devise effective strategies against those worms’ spreading. This paper presents a microcosmic analysis of worm propagation procedures

]]> http://www.the-computer-book.com/uncategorized/the-microcosmic-model-of-worm-propagation/feed/ 0 iPad 2 – Cannot Connect to WPA2 Wi-Fi Network? http://www.the-computer-book.com/uncategorized/ipad-2-%e2%80%93-cannot-connect-to-wpa2-wi-fi-network/ http://www.the-computer-book.com/uncategorized/ipad-2-%e2%80%93-cannot-connect-to-wpa2-wi-fi-network/#comments Fri, 02 Sep 2011 12:28:29 +0000 Master http://www.the-computer-book.com/uncategorized/ipad-2-%e2%80%93-cannot-connect-to-wpa2-wi-fi-network/ Recently, I ran across a problem with my iPad 2 that I had not experienced before: not being able to connect to a wireless network! I’ve had my iPad 2 since it first came out and haven’t had a single issue with it yet! It’s the best gadget I have ever owned.

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iPad 2 – Cannot Connect to WPA2 Wi-Fi Network?

]]> http://www.the-computer-book.com/uncategorized/ipad-2-%e2%80%93-cannot-connect-to-wpa2-wi-fi-network/feed/ 0 PrePrint: Improving Content Delivery with PaDIS http://www.the-computer-book.com/uncategorized/preprint-improving-content-delivery-with-padis/ http://www.the-computer-book.com/uncategorized/preprint-improving-content-delivery-with-padis/#comments Thu, 18 Aug 2011 06:33:33 +0000 Master http://www.the-computer-book.com/uncategorized/preprint-improving-content-delivery-with-padis/ Today, a large fraction of Internet traffic is originated by Content Delivery Networks (CDNs).

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PrePrint: Improving Content Delivery with PaDIS

]]> http://www.the-computer-book.com/uncategorized/preprint-improving-content-delivery-with-padis/feed/ 0 Top Ways to Boost WiFi Signals and Improve Wireless Network Performance http://www.the-computer-book.com/uncategorized/top-ways-to-boost-wifi-signals-and-improve-wireless-network-performance/ http://www.the-computer-book.com/uncategorized/top-ways-to-boost-wifi-signals-and-improve-wireless-network-performance/#comments Tue, 16 Aug 2011 12:21:55 +0000 admin http://www.the-computer-book.com/uncategorized/top-ways-to-boost-wifi-signals-and-improve-wireless-network-performance/ With a newer Wireless N router, WiFi networks are usually fairly efficient. For at home setups, a quality router will usually be more than enough to run a decent network. After all, even your close neighbors can find your wireless router’s network.

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Top Ways to Boost WiFi Signals and Improve Wireless Network Performance

]]> http://www.the-computer-book.com/uncategorized/top-ways-to-boost-wifi-signals-and-improve-wireless-network-performance/feed/ 0 Setup a Second Wireless Router on Your Home Network http://www.the-computer-book.com/uncategorized/setup-a-second-wireless-router-on-your-home-network/ http://www.the-computer-book.com/uncategorized/setup-a-second-wireless-router-on-your-home-network/#comments Mon, 25 Jul 2011 12:23:47 +0000 Master http://www.the-computer-book.com/uncategorized/setup-a-second-wireless-router-on-your-home-network/ We moved into our new house about a year ago and I was super excited because I had it all wired up with Cat 6 cable and Ethernet ports all over the place! Unforunately for me, I didn’t realize that all of those connections would be coming from one location and that happened to be Post from: Setup a Second Wireless Router on Your Home Network

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Setup a Second Wireless Router on Your Home Network

]]> http://www.the-computer-book.com/uncategorized/setup-a-second-wireless-router-on-your-home-network/feed/ 0 OS X Lion – The Network Backup Disk Does Not Support the Required AFP Features http://www.the-computer-book.com/uncategorized/os-x-lion-%e2%80%93-the-network-backup-disk-does-not-support-the-required-afp-features/ http://www.the-computer-book.com/uncategorized/os-x-lion-%e2%80%93-the-network-backup-disk-does-not-support-the-required-afp-features/#comments Fri, 22 Jul 2011 11:27:23 +0000 admin http://www.the-computer-book.com/uncategorized/os-x-lion-%e2%80%93-the-network-backup-disk-does-not-support-the-required-afp-features/ OS X Lion was released yesterday and I was super excited to upgrade for all the new features like Launchpad, Mission Control and full-screen apps. Once installed, it’s definitely been worth the $30 to upgrade.

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OS X Lion – The Network Backup Disk Does Not Support the Required AFP Features

]]> http://www.the-computer-book.com/uncategorized/os-x-lion-%e2%80%93-the-network-backup-disk-does-not-support-the-required-afp-features/feed/ 0 A Depth-optimal Low-complexity Distributed Wireless Multicast Algorithm http://www.the-computer-book.com/uncategorized/a-depth-optimal-low-complexity-distributed-wireless-multicast-algorithm/ http://www.the-computer-book.com/uncategorized/a-depth-optimal-low-complexity-distributed-wireless-multicast-algorithm/#comments Tue, 31 May 2011 15:01:07 +0000 Master http://www.the-computer-book.com/uncategorized/a-depth-optimal-low-complexity-distributed-wireless-multicast-algorithm/ This paper presents a wireless multicast tree construction algorithm, SWIM (Source-initiated WIreless Multicast).

]]> http://www.the-computer-book.com/uncategorized/a-depth-optimal-low-complexity-distributed-wireless-multicast-algorithm/feed/ 0 Use a Network Web Cam to Watch Your House from the Web http://www.the-computer-book.com/uncategorized/use-a-network-web-cam-to-watch-your-house-from-the-web/ http://www.the-computer-book.com/uncategorized/use-a-network-web-cam-to-watch-your-house-from-the-web/#comments Mon, 16 May 2011 12:41:49 +0000 admin http://www.the-computer-book.com/uncategorized/use-a-network-web-cam-to-watch-your-house-from-the-web/ Most people work outside of their homes for at least eight hours, five days per week. During the time we are at work, we have no idea what is happening at our homes.

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Use a Network Web Cam to Watch Your House from the Web

]]> http://www.the-computer-book.com/uncategorized/use-a-network-web-cam-to-watch-your-house-from-the-web/feed/ 0 On the Topological Properties of Grid-Based Interconnection Networks: Surface Area and Volume of Radial Spheres http://www.the-computer-book.com/uncategorized/on-the-topological-properties-of-grid-based-interconnection-networks-surface-area-and-volume-of-radial-spheres/ http://www.the-computer-book.com/uncategorized/on-the-topological-properties-of-grid-based-interconnection-networks-surface-area-and-volume-of-radial-spheres/#comments Thu, 05 May 2011 14:38:30 +0000 Master http://www.the-computer-book.com/uncategorized/on-the-topological-properties-of-grid-based-interconnection-networks-surface-area-and-volume-of-radial-spheres/ Grid-based networks (or grids for short), such as meshes and tori, have been the underlying topology for many multicomputers, and have been extensively studied in the past as a graph topology. In this paper, we investigate some topological properties of grids without boundary wrap-around (meshes) and with boundary wrap-around (tori). In particular, we study the problem of finding the number of nodes located at/within a given distance from a given node (surface area/volume) in the network and derive some expressions for computing such a number

]]> http://www.the-computer-book.com/uncategorized/on-the-topological-properties-of-grid-based-interconnection-networks-surface-area-and-volume-of-radial-spheres/feed/ 0 How to Setup and Use a Windows 7 Homegroup http://www.the-computer-book.com/uncategorized/how-to-setup-and-use-a-windows-7-homegroup/ http://www.the-computer-book.com/uncategorized/how-to-setup-and-use-a-windows-7-homegroup/#comments Tue, 12 Apr 2011 12:47:00 +0000 Master http://www.the-computer-book.com/uncategorized/how-to-setup-and-use-a-windows-7-homegroup/ A homegroup in Windows 7 is a means by which users of a home based, generally wireless network, can share resources (hard drives, libraries, printers, etc.) easily and without too much trouble.

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How to Setup and Use a Windows 7 Homegroup

]]> http://www.the-computer-book.com/uncategorized/how-to-setup-and-use-a-windows-7-homegroup/feed/ 0 Increasing Resiliency in Multi-phase Wireless Sensor Networks: Generationwise Key Predistribution Approach http://www.the-computer-book.com/uncategorized/increasing-resiliency-in-multi-phase-wireless-sensor-networks-generationwise-key-predistribution-approach/ http://www.the-computer-book.com/uncategorized/increasing-resiliency-in-multi-phase-wireless-sensor-networks-generationwise-key-predistribution-approach/#comments Tue, 29 Mar 2011 14:24:25 +0000 admin http://www.the-computer-book.com/uncategorized/increasing-resiliency-in-multi-phase-wireless-sensor-networks-generationwise-key-predistribution-approach/ In wireless sensor networks (WSNs), sensor nodes eventually die due to battery depletion. WSNs in which new nodes are periodically redeployed with certain intervals, called generations, to replace the dead nodes are called multi-phase WSNs.

]]> http://www.the-computer-book.com/uncategorized/increasing-resiliency-in-multi-phase-wireless-sensor-networks-generationwise-key-predistribution-approach/feed/ 0 Print from iPad to any Windows-Connected Printer http://www.the-computer-book.com/uncategorized/print-from-ipad-to-any-windows-connected-printer/ http://www.the-computer-book.com/uncategorized/print-from-ipad-to-any-windows-connected-printer/#comments Thu, 17 Mar 2011 12:13:56 +0000 admin http://www.the-computer-book.com/uncategorized/print-from-ipad-to-any-windows-connected-printer/ iPad prints to any AirPrint enabled printer without iPad users having to download a third-party app. AirPrint printers, however, are currently only made by HP—and none on the Apple AirPrint-Enabled list handle the kind of printing capacity most of us need.

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Print from iPad to any Windows-Connected Printer

]]> http://www.the-computer-book.com/uncategorized/print-from-ipad-to-any-windows-connected-printer/feed/ 0 Multi-Agent Support in a Middleware for Mission-Driven Heterogeneous Sensor Networks http://www.the-computer-book.com/uncategorized/multi-agent-support-in-a-middleware-for-mission-driven-heterogeneous-sensor-networks/ http://www.the-computer-book.com/uncategorized/multi-agent-support-in-a-middleware-for-mission-driven-heterogeneous-sensor-networks/#comments Fri, 25 Feb 2011 16:10:49 +0000 admin http://www.the-computer-book.com/uncategorized/multi-agent-support-in-a-middleware-for-mission-driven-heterogeneous-sensor-networks/ The emerging applications using sensor network technologies constitute a new trend requiring several different devices to work together and partly autonomously. However, the integration and coordination of heterogeneous sensors in these emerging systems is still a challenge, especially when the target application scenario is susceptible to constant changes

]]> http://www.the-computer-book.com/uncategorized/multi-agent-support-in-a-middleware-for-mission-driven-heterogeneous-sensor-networks/feed/ 0 Multi-Agent Support in a Middleware for Mission-Driven Heterogeneous Sensor Networks http://www.the-computer-book.com/uncategorized/multi-agent-support-in-a-middleware-for-mission-driven-heterogeneous-sensor-networks-2/ http://www.the-computer-book.com/uncategorized/multi-agent-support-in-a-middleware-for-mission-driven-heterogeneous-sensor-networks-2/#comments Fri, 25 Feb 2011 16:10:49 +0000 Master http://www.the-computer-book.com/uncategorized/multi-agent-support-in-a-middleware-for-mission-driven-heterogeneous-sensor-networks-2/ The emerging applications using sensor network technologies constitute a new trend requiring several different devices to work together and partly autonomously. However, the integration and coordination of heterogeneous sensors in these emerging systems is still a challenge, especially when the target application scenario is susceptible to constant changes.

]]> http://www.the-computer-book.com/uncategorized/multi-agent-support-in-a-middleware-for-mission-driven-heterogeneous-sensor-networks-2/feed/ 0 Dynamic Multipath Allocation in Ad Hoc Networks http://www.the-computer-book.com/uncategorized/dynamic-multipath-allocation-in-ad-hoc-networks/ http://www.the-computer-book.com/uncategorized/dynamic-multipath-allocation-in-ad-hoc-networks/#comments Fri, 28 Jan 2011 15:23:54 +0000 Master http://www.the-computer-book.com/uncategorized/dynamic-multipath-allocation-in-ad-hoc-networks/ Ad hoc networks are characterized by fast dynamic changes in the topology of the network.

]]> http://www.the-computer-book.com/uncategorized/dynamic-multipath-allocation-in-ad-hoc-networks/feed/ 0 PrePrint: Friend-in-the-middle Attacks: Exploiting Social Networking Sites for Spam http://www.the-computer-book.com/uncategorized/preprint-friend-in-the-middle-attacks-exploiting-social-networking-sites-for-spam/ http://www.the-computer-book.com/uncategorized/preprint-friend-in-the-middle-attacks-exploiting-social-networking-sites-for-spam/#comments Wed, 19 Jan 2011 16:04:02 +0000 admin http://www.the-computer-book.com/uncategorized/preprint-friend-in-the-middle-attacks-exploiting-social-networking-sites-for-spam/ In this work we present our friend-in-the-middle attacks on SNSs and how it can be used to harvest social data in an automated fashion. This social data can then be exploited for large-scale attacks such as context-aware spam and social-phishing. We prove the feasibility of our attack exemplary on Facebook and estimate the impact based upon a simulation on a regional network of Facebook

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PrePrint: Friend-in-the-middle Attacks: Exploiting Social Networking Sites for Spam

]]> http://www.the-computer-book.com/uncategorized/preprint-friend-in-the-middle-attacks-exploiting-social-networking-sites-for-spam/feed/ 0 Compare Verizon’s iPhone 4 with AT&T’s http://www.the-computer-book.com/uncategorized/compare-verizon%e2%80%99s-iphone-4-with-att%e2%80%99s/ http://www.the-computer-book.com/uncategorized/compare-verizon%e2%80%99s-iphone-4-with-att%e2%80%99s/#comments Wed, 12 Jan 2011 11:26:23 +0000 admin http://www.the-computer-book.com/uncategorized/compare-verizon%e2%80%99s-iphone-4-with-att%e2%80%99s/ The long-anticipated announcement of Verizon’s iPhone hit the airways this week, leaving many iPhone lovers to consider switching phone carriers.

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Compare Verizon’s iPhone 4 with AT&T’s

]]> http://www.the-computer-book.com/uncategorized/compare-verizon%e2%80%99s-iphone-4-with-att%e2%80%99s/feed/ 0 Cross Layer Optimization for Energy-Constrained Wireless Sensor Networks: Joint Rate Control and Routing http://www.the-computer-book.com/uncategorized/cross-layer-optimization-for-energy-constrained-wireless-sensor-networks-joint-rate-control-and-routing/ http://www.the-computer-book.com/uncategorized/cross-layer-optimization-for-energy-constrained-wireless-sensor-networks-joint-rate-control-and-routing/#comments Thu, 02 Dec 2010 16:15:07 +0000 Master http://www.the-computer-book.com/uncategorized/cross-layer-optimization-for-energy-constrained-wireless-sensor-networks-joint-rate-control-and-routing/ In the following paper, we study the tradeoff between network utility and network lifetime for energy-constrained wireless sensor networks (WSNs).

]]> http://www.the-computer-book.com/uncategorized/cross-layer-optimization-for-energy-constrained-wireless-sensor-networks-joint-rate-control-and-routing/feed/ 0 The Design of Mobile Concurrent Multipath Transfer in Multihomed Wireless Mobile Networks http://www.the-computer-book.com/uncategorized/the-design-of-mobile-concurrent-multipath-transfer-in-multihomed-wireless-mobile-networks/ http://www.the-computer-book.com/uncategorized/the-design-of-mobile-concurrent-multipath-transfer-in-multihomed-wireless-mobile-networks/#comments Thu, 02 Dec 2010 16:15:07 +0000 admin http://www.the-computer-book.com/uncategorized/the-design-of-mobile-concurrent-multipath-transfer-in-multihomed-wireless-mobile-networks/ As more and more devices are equipped with multiple network interfaces, the multihomed technology is becoming an important technology that can provide more reliable connection against the network failure and higher data transmission rate. Concurrent Multipath Transfer (CMT), which is based on SCTP, is devised for multihomed networks.

]]> http://www.the-computer-book.com/uncategorized/the-design-of-mobile-concurrent-multipath-transfer-in-multihomed-wireless-mobile-networks/feed/ 0