Performance Evaluation of VoIP and TCP over wireless networks
... idea: allow sender to “reserve” channel rather than random access of data frames: avoid collisions of long data frames • sender first transmits small request-to-send (RTS) packets to AP using CSMA – RTSs may still collide with each other (but they’re short) • AP broadcasts clear-to-send CTS in respo ...
... idea: allow sender to “reserve” channel rather than random access of data frames: avoid collisions of long data frames • sender first transmits small request-to-send (RTS) packets to AP using CSMA – RTSs may still collide with each other (but they’re short) • AP broadcasts clear-to-send CTS in respo ...
Wireless Networks
... All clients within an ad-hoc network are equal. The area covered by this network is known as an Independent Basic Service Set (IBSS). A simple ad-hoc network can be used to exchange files and information between devices without the expense and complexity of purchasing and configuring an AP. ...
... All clients within an ad-hoc network are equal. The area covered by this network is known as an Independent Basic Service Set (IBSS). A simple ad-hoc network can be used to exchange files and information between devices without the expense and complexity of purchasing and configuring an AP. ...
White Paper
... interface and ranges from once every minute to once every two hours. The send interval for traps containing static data is fixed to once every 12 hours. The individual fields of traps containing dynamic data can either carry information in human readable format or in machine readable format, dependi ...
... interface and ranges from once every minute to once every two hours. The send interval for traps containing static data is fixed to once every 12 hours. The individual fields of traps containing dynamic data can either carry information in human readable format or in machine readable format, dependi ...
What is an L3 Master Device?
... ▪ Master devices: IFF_L3MDEV_MASTER ▪ Enslaved devices: IFF_L3MDEV_SLAVE cumulusnetworks.com ...
... ▪ Master devices: IFF_L3MDEV_MASTER ▪ Enslaved devices: IFF_L3MDEV_SLAVE cumulusnetworks.com ...
Zigbee_Intro_v5 - University of Virginia, Department of Computer
... • Targeted for home automation • Originally used power lines as transmission media. Later RF communication was added. • Mainly used to transmit a few codes to turn on or off other devices, aka. Remote control. • Very simple protocol – 4-bit house code (group address) – 4-bit unit code (device addres ...
... • Targeted for home automation • Originally used power lines as transmission media. Later RF communication was added. • Mainly used to transmit a few codes to turn on or off other devices, aka. Remote control. • Very simple protocol – 4-bit house code (group address) – 4-bit unit code (device addres ...
Certified Wireless Network Administrator (CWNA) PW0-105
... Certified Wireless Network Administrator: CWNA – PW0-105 ...
... Certified Wireless Network Administrator: CWNA – PW0-105 ...
virtio-vsock - Stefan Hajnoczi
... Ports can be named (e.g. org.qemu.guest_agent.0) Guest agent opens /dev/virtioports/ character device
Client app connects to QEMU
chardev (UNIX domain socket,
named pipe, etc)
...
... Ports can be named (e.g. org.qemu.guest_agent.0) Guest agent opens /dev/virtioports/
PDF
... manager; and support for the Cisco FindIT Network Discovery Utility, all at a very affordable price. Its combination of business-class features, support for virtual networks that enable highly secure guest access, simple installation, and top-quality user experience takes basic connectivity for smal ...
... manager; and support for the Cisco FindIT Network Discovery Utility, all at a very affordable price. Its combination of business-class features, support for virtual networks that enable highly secure guest access, simple installation, and top-quality user experience takes basic connectivity for smal ...
AP mode management guide
... 4. Click OK to add this network into the profile list. Note: This example is an open wireless network. If you are going to connect to a Wireless adapter with security protection, you will have to configure the encryption settings in this profile to be corresponding to the other wireless adapter. Pl ...
... 4. Click OK to add this network into the profile list. Note: This example is an open wireless network. If you are going to connect to a Wireless adapter with security protection, you will have to configure the encryption settings in this profile to be corresponding to the other wireless adapter. Pl ...
Document
... unicasting within a uniform framework. • Each route has a lifetime after which the route expires if it is not used. • A route is maintained only when it is used and hence old and expired routes are never used. ...
... unicasting within a uniform framework. • Each route has a lifetime after which the route expires if it is not used. • A route is maintained only when it is used and hence old and expired routes are never used. ...
Introduction to our FYP Wireless Campus
... What is Direct X? •Direct X is an API for Microsoft windows. •Provide a standard way of accessing many different hardware devices •Consists of five main sections: - DirectDraw - Direct3D - DirectSound - DirectPlay - DirectInput ...
... What is Direct X? •Direct X is an API for Microsoft windows. •Provide a standard way of accessing many different hardware devices •Consists of five main sections: - DirectDraw - Direct3D - DirectSound - DirectPlay - DirectInput ...
Toby Nixon, Senior Standards Program Manager - Events
... • Clients can search using multicast “Probe” – Devices respond using “ProbeMatch” ...
... • Clients can search using multicast “Probe” – Devices respond using “ProbeMatch” ...
9781435487383_PPT_ch10
... Figure 10-16 Four different types of wireless network adapters: (a) wireless NIC that fits in a PCI slot; (b) onboard wireless with an antenna that can be moved; (c) PC Card wireless NIC with embedded antenna; and (d) wireless NIC that uses a USB port on a desktop or notebook ...
... Figure 10-16 Four different types of wireless network adapters: (a) wireless NIC that fits in a PCI slot; (b) onboard wireless with an antenna that can be moved; (c) PC Card wireless NIC with embedded antenna; and (d) wireless NIC that uses a USB port on a desktop or notebook ...
RFS 6000 - Staley Communication, Inc.
... reliable voice, video and data applications. Designed on the innovative and modular Wi-NG operating system, the RFS 6000 provides wired and wireless networking services, multiple locationing technologies such as Wi-Fi and RFID*; resiliency via 3G wireless broadband backhaul; and high performance wit ...
... reliable voice, video and data applications. Designed on the innovative and modular Wi-NG operating system, the RFS 6000 provides wired and wireless networking services, multiple locationing technologies such as Wi-Fi and RFID*; resiliency via 3G wireless broadband backhaul; and high performance wit ...
Linux+ Guide to Linux Certification
... Security High data rates Spectrum utilization Coexistence ...
... Security High data rates Spectrum utilization Coexistence ...
Guide to Networking Essentials, Fifth Edition
... direct memory access (DMA) — A technique for addressing memory on some other device as though it were local memory directly available to the device accessing that memory. This technique lets a CPU gain immediate access to the buffers on any NIC that supports DMA. diskless workstations — Network ...
... direct memory access (DMA) — A technique for addressing memory on some other device as though it were local memory directly available to the device accessing that memory. This technique lets a CPU gain immediate access to the buffers on any NIC that supports DMA. diskless workstations — Network ...
English
... Standard (AES) keys. In addition to all WirelessHART communication being encrypted, the gateway provides several secure host protocols which are encrypted. All unencrypted protocols can be disabled by the user. ...
... Standard (AES) keys. In addition to all WirelessHART communication being encrypted, the gateway provides several secure host protocols which are encrypted. All unencrypted protocols can be disabled by the user. ...
Setup and User Guide
... Infrastructure: all traffic passes through an access point. Ad-hoc: traffic is sent from one computer to another. ...
... Infrastructure: all traffic passes through an access point. Ad-hoc: traffic is sent from one computer to another. ...
User Guide
... output power to a mobile phone. It uses an internal or external antenna to connect to the mobile network. To get the best performance from your device do not cover or shield the device in any way as this will lead to increased output power. Always leave a clear space around the device to allow the t ...
... output power to a mobile phone. It uses an internal or external antenna to connect to the mobile network. To get the best performance from your device do not cover or shield the device in any way as this will lead to increased output power. Always leave a clear space around the device to allow the t ...
Slide 1
... Uncertainty of Performance Variance of bit errors Variance of delays Variance of bandwidth ...
... Uncertainty of Performance Variance of bit errors Variance of delays Variance of bandwidth ...
Mobile Computing Functions
... Wireless Personal Area Networks (WPANs) are short-range (10 meter or less) radio networks for personal, home, and other special uses. Within the WPAN family, several specifications such as Bluetooth, wireless sensor networks, and UWB (Ultra Wideband) have emerged. Bluetooth is a wireless cable repla ...
... Wireless Personal Area Networks (WPANs) are short-range (10 meter or less) radio networks for personal, home, and other special uses. Within the WPAN family, several specifications such as Bluetooth, wireless sensor networks, and UWB (Ultra Wideband) have emerged. Bluetooth is a wireless cable repla ...
CCENT Review
... The bootstrap program locates the Cisco IOS software and loads it into RAM. Cisco IOS files can be located in one of three places: ____________, _____________, or another location indicated in the startup configuration file. By default, the Cisco IOS software loads from _________ memory. The configu ...
... The bootstrap program locates the Cisco IOS software and loads it into RAM. Cisco IOS files can be located in one of three places: ____________, _____________, or another location indicated in the startup configuration file. By default, the Cisco IOS software loads from _________ memory. The configu ...
Wireless USB
Wireless USB is a short-range, high-bandwidth wireless radio communication protocol created by the Wireless USB Promoter Group. Wireless USB is sometimes abbreviated as ""WUSB"", although the USB Implementers Forum discouraged this practice and instead prefers to call the technology Certified Wireless USB to distinguish it from the competing UWB standard.Wireless USB was based on the (now defunct) WiMedia Alliance's ultra-wideband (UWB) common radio platform, which is capable of sending 480 Mbit/s at distances up to 3 metres (9.8 ft) and 110 Mbit/s at up to 10 metres (33 ft). It was designed to operate in the 3.1 to 10.6 GHz frequency range, although local regulatory policies may restrict the legal operating range for any given country.