LTE-WiFi Handover Strangelove - Institute for Computing and
... smartcard that contains information about the network operator, the phone number and perhaps a couple of additional applications that have been stored on it by the network operator. Authentication is done mutually[22], that is, the network authenticates the mobile device and the mobile device authen ...
... smartcard that contains information about the network operator, the phone number and perhaps a couple of additional applications that have been stored on it by the network operator. Authentication is done mutually[22], that is, the network authenticates the mobile device and the mobile device authen ...
Part I: Introduction
... datagram in data link frame carry network layer data of any network layer protocol (not just IP) at same time ability to demultiplex upwards bit transparency: must carry any bit pattern in the data field error detection (no correction) connection livenes: detect, signal link failure to network l ...
... datagram in data link frame carry network layer data of any network layer protocol (not just IP) at same time ability to demultiplex upwards bit transparency: must carry any bit pattern in the data field error detection (no correction) connection livenes: detect, signal link failure to network l ...
VLC
... The most important factor in VLC is the switching properties of the visible LEDs They have the ability to be switched on and off very rapidly thereby making it possible to impress data on their radiated optical power/intensity Modulation speed of white LEDs is limited due to the relaxation t ...
... The most important factor in VLC is the switching properties of the visible LEDs They have the ability to be switched on and off very rapidly thereby making it possible to impress data on their radiated optical power/intensity Modulation speed of white LEDs is limited due to the relaxation t ...
ADSL Network - Binus Repository
... • Signals from multiple sources multiplexed • Frequency conversion for local signal • Network interface device (NID) / unit (NIU) Demarcation point between customer network and service provider networks • Cable modem: RF Ethernet, analog telephony, and video ...
... • Signals from multiple sources multiplexed • Frequency conversion for local signal • Network interface device (NID) / unit (NIU) Demarcation point between customer network and service provider networks • Cable modem: RF Ethernet, analog telephony, and video ...
Ericsson Mobility Report
... Central and Eastern Europe shows a strong increase in HSPA subscriptions. LTE will initially grow in the most developed parts of the region and will be present in almost all countries by 2015. The Asia Pacific market continues to see a significant increase in mobile subscriptions with 1.4 billion ne ...
... Central and Eastern Europe shows a strong increase in HSPA subscriptions. LTE will initially grow in the most developed parts of the region and will be present in almost all countries by 2015. The Asia Pacific market continues to see a significant increase in mobile subscriptions with 1.4 billion ne ...
Malaysia: Mobile-Fixed-Mobile Interconnection Case Study
... compensated for the cost incurred in the provision of interconnection. • The structure and level of charges should be related to the direct costs incurred by each network operator. Charges should generally be in proportion to the extent and nature of the interconnection service or facility being sup ...
... compensated for the cost incurred in the provision of interconnection. • The structure and level of charges should be related to the direct costs incurred by each network operator. Charges should generally be in proportion to the extent and nature of the interconnection service or facility being sup ...
Multicasting in Mobile ad hoc networks
... can work only if the radio technology allows such interaction between layers.( its not solution for heterogenous wireless network) The packet loss during the handover is * Thp. The handoff process performances, depend of wireless network Radio technologies, it can make problems when mobile node pe ...
... can work only if the radio technology allows such interaction between layers.( its not solution for heterogenous wireless network) The packet loss during the handover is * Thp. The handoff process performances, depend of wireless network Radio technologies, it can make problems when mobile node pe ...
IOSR Journal of Electronics and Communication Engineering (IOSR-JECE)
... algorithm for the handoff transition region between the WLAN and CDMA cellular network. Mobility management using MA and SA was also adopted to minimize the handoff delay in the WLAN-CDMA Cellular interconnection architecture based on IP. In the handoff algorithm they use the number of continuous be ...
... algorithm for the handoff transition region between the WLAN and CDMA cellular network. Mobility management using MA and SA was also adopted to minimize the handoff delay in the WLAN-CDMA Cellular interconnection architecture based on IP. In the handoff algorithm they use the number of continuous be ...
Secure Universal Mobility for Wireless Internet
... with different access technologies connect to the mobile router’s internal interface. In this case the end clients do not change their IP addresses rather the mobile router keeps on changing the external IP addresses as they move around and connect to different access networks such as GPRS, CDMA and ...
... with different access technologies connect to the mobile router’s internal interface. In this case the end clients do not change their IP addresses rather the mobile router keeps on changing the external IP addresses as they move around and connect to different access networks such as GPRS, CDMA and ...
LAAC: A Location-Aware Access Control Protocol
... two access-granted areas are defined as the shaded overlapping coverage areas of two AP groups G1 = {AP 1, AP 2} and G2 = {AP 3, AP 4}, where the directional antenna of each access point spreads 90◦ . The access-denied areas are those areas outside access-granted areas. The access points that determ ...
... two access-granted areas are defined as the shaded overlapping coverage areas of two AP groups G1 = {AP 1, AP 2} and G2 = {AP 3, AP 4}, where the directional antenna of each access point spreads 90◦ . The access-denied areas are those areas outside access-granted areas. The access points that determ ...
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[PDF]
... Handoff and level 2 (Connection layer) Handoff, according to the OSI model. The layer 2 Handoff is the operation carried out by a Mobile Node, which changes of radio access point. This Handoff can generate or not a Handoff of superior layer according to the wired connection of radio access points (i ...
... Handoff and level 2 (Connection layer) Handoff, according to the OSI model. The layer 2 Handoff is the operation carried out by a Mobile Node, which changes of radio access point. This Handoff can generate or not a Handoff of superior layer according to the wired connection of radio access points (i ...
Translation
... – ___1．This concept of location based systems follows the standardized concept of real-time locating systems and related local services. – ___2．LBS was originally developed by mobile carriers in partnership with mobile content providers. – ___3．GPS and GSM can’t work indoors. – ___4．LBS and SMS can ...
... – ___1．This concept of location based systems follows the standardized concept of real-time locating systems and related local services. – ___2．LBS was originally developed by mobile carriers in partnership with mobile content providers. – ___3．GPS and GSM can’t work indoors. – ___4．LBS and SMS can ...
Sample Question Paper for 9210-214 Telecommunication systems engineering
... Explain the meaning of the functions station keeping and attitude control as applied in satellite communication systems and the need for each. Name two techniques used for attitude control. Describe four reasons for the importance of attitude control of a satellite for its users. An earth station lo ...
... Explain the meaning of the functions station keeping and attitude control as applied in satellite communication systems and the need for each. Name two techniques used for attitude control. Describe four reasons for the importance of attitude control of a satellite for its users. An earth station lo ...
Mobile Communications
... Many research efforts in mobile computing and wireless networks try to hide the fact that the network access has been changed or that a wireless link is more error prone than a wired one. Examples: Mobile IP tries to hide that fact of changing access points by redirecting packets but keeping the sam ...
... Many research efforts in mobile computing and wireless networks try to hide the fact that the network access has been changed or that a wireless link is more error prone than a wired one. Examples: Mobile IP tries to hide that fact of changing access points by redirecting packets but keeping the sam ...
Selecting Vertical Handover Candidates in IEEE 802.11 Mesh Networks
... addition to WLAN meshes, future wireless networks will be expanded by multiple heterogeneous access technologies such as UMTS and WiMax. These technologies differ greatly regarding medium access scheme, network capacity, QoS support, choice of data rates, and other various parameters such as power c ...
... addition to WLAN meshes, future wireless networks will be expanded by multiple heterogeneous access technologies such as UMTS and WiMax. These technologies differ greatly regarding medium access scheme, network capacity, QoS support, choice of data rates, and other various parameters such as power c ...
Chapter 6 slides, Computer Networking, 3rd edition
... Cellular frequency re-use concept: cells with the same letter use the same set of frequencies. A cluster of cells (highlighted in bold) is replicated over the coverage area. The cluster size, N, is equal to 7. Since each cell contains one-seventh of the overall channels, the cell frequency re-use fa ...
... Cellular frequency re-use concept: cells with the same letter use the same set of frequencies. A cluster of cells (highlighted in bold) is replicated over the coverage area. The cluster size, N, is equal to 7. Since each cell contains one-seventh of the overall channels, the cell frequency re-use fa ...
An Interworking Architecture
... complemented by Local Monitors, which communicate with each other via the Interworking Gateway ...
... complemented by Local Monitors, which communicate with each other via the Interworking Gateway ...
PDF
... An approach we focus the handover on the fuzzy logic its delay time to reach to the destination. A. Brief on fuzzy logic: The initiation of the fuzzy logic started in the year of 1965 by a professor at the University of California. Fuzzy logic is a multivalued logic, which allows transitional values ...
... An approach we focus the handover on the fuzzy logic its delay time to reach to the destination. A. Brief on fuzzy logic: The initiation of the fuzzy logic started in the year of 1965 by a professor at the University of California. Fuzzy logic is a multivalued logic, which allows transitional values ...
ECE544
... • Cell delineation for SONET, SDH, etc... • Recalculated link-by-link because of VPI/VCI value changes ...
... • Cell delineation for SONET, SDH, etc... • Recalculated link-by-link because of VPI/VCI value changes ...
p1568938335-dutta - Computer Science, Columbia University
... different access networks such as GPRS, CDMA and 802.11b. Although it has taken care of technology diversity, network diversity and channel diversity to support variety of traffic, it has not discussed how to support security along with mobility. Snoeren et al [14] discuss fine-grained failover usin ...
... different access networks such as GPRS, CDMA and 802.11b. Although it has taken care of technology diversity, network diversity and channel diversity to support variety of traffic, it has not discussed how to support security along with mobility. Snoeren et al [14] discuss fine-grained failover usin ...
Cloud RAN - Ericsson
... On the other hand, there is no need to virtualize all RAN functionality to provide the benefits of Cloud RAN. Virtualization as an execution environment technique can be used to provide isolation, scalability and elasticity, among other things, for the Radio Resource Control (RRC) protocol layer. Wh ...
... On the other hand, there is no need to virtualize all RAN functionality to provide the benefits of Cloud RAN. Virtualization as an execution environment technique can be used to provide isolation, scalability and elasticity, among other things, for the Radio Resource Control (RRC) protocol layer. Wh ...
Cellular network
A cellular network or mobile network is a communications network where the last link is wireless. The network is distributed over land areas called cells, each served by at least one fixed-location transceiver, known as a cell site or base station. In a cellular network, each cell uses a different set of frequencies from neighboring cells, to avoid interference and provide guaranteed bandwidth within each cell.When joined together these cells provide radio coverage over a wide geographic area. This enables a large number of portable transceivers (e.g., mobile phones, pagers, etc.) to communicate with each other and with fixed transceivers and telephones anywhere in the network, via base stations, even if some of the transceivers are moving through more than one cell during transmission.Cellular networks offer a number of desirable features: More capacity than a single large transmitter, since the same frequency can be used for multiple links as long as they are in different cells Mobile devices use less power than with a single transmitter or satellite since the cell towers are closer Larger coverage area than a single terrestrial transmitter, since additional cell towers can be added indefinitely and are not limited by the horizonMajor telecommunications providers have deployed voice and data cellular networks over most of the inhabited land area of the Earth. This allows mobile phones and mobile computing devices to be connected to the public switched telephone network and public Internet. Private cellular networks can be used for research or for large organizations and fleets, such as dispatch for local public safety agencies or a taxicab company.