<link rel="stylesheet" href="styles.cf390c6bfbe7555f.css">

學術出版;;Publications

Permanent URI for this communityhdl:11536/1

收集所有交通大學研究人員與學生個人或團體所發表之各項學術著作，涵蓋期刊論文、教師專書、學位論文等項。;;Collections of Publications of NCTU Researchers and Students Like Journal Papers and Thesis.

Browse

Filters

1998 - 199912000 - 200932010 - 20158

Settings

🏛️國立陽明交通大學機構典藏

Author: search.filters.author.Lin, Yi-BingSubject: search.filters.subject.mobility management

Search Results

Now showing 1 - 10 of 12
  • Thumbnail Image
    Item type:Item,
    A dynamic paging scheme for long-term evolution mobility management
    (2015-03-01)
    Lin, Yi-Bing
    ;
    Liou, Ren-Huang
    ;
    Chang, Chun-Ting
    ;
    資訊工程學系
    ;
    Department of Computer Science
    In long-term evolution, the service area is partitioned into several tracking areas (TAs), which comprise one or more cells (the radio coverages of base stations). The TAs are grouped into TA list (TAL). When an incoming call arrives, the network attempts to connect to the user equipment (UE) by paging the cells in the UE's TAL, which may incur large paging traffic that significantly consumes the limited radio resources. To resolve this issue, this paper proposes a dynamic paging scheme that determines the paging sequence of cells in real time according to the UE movement and call behavior. We compare the performance of the dynamic paging with that of the previously proposed Cell-TA-TAL (CTT) paging. Our study indicates that the dynamic paging outperforms the CTT paging when movement pattern is regular and the UE moves frequently. Copyright (c) 2013 John Wiley & Sons, Ltd.
  • Thumbnail Image
    Item type:Item,
    Reducing International Call Costs for Roamer to Roamer Calls
    (2010-10-01)
    Chen, Yuan-Kai
    ;
    Lin, Yi-Bing
    ;
    Liou, Ren-Huang
    ;
    資訊工程學系
    ;
    Department of Computer Science
    Existing mobile telecom operators allow subscribers to receive mobile phone services when they roam in other countries. However, call setup to an international roaming subscriber is indirectly routed through the home network of the subscriber, which results in the usage of two expensive international telephone trunks. In this paper, we propose a plug-in roaming gateway to avoid the international trunk connections. Our solution is especially attractive when both call parties are roamers.
  • Thumbnail Image
    Item type:Item,
    Mobility Management for Wireless Systems with Unreliable Backhaul Links
    (1998-05-01)
    Lin, Yi-Bing
    ;
    Chen, Shu-Chin Su
    ;
    Yang, Chu-Sing
    ;
    資訊工程學系
    ;
    Department of Computer Science
    We consider a wireless system with unreliable microwave backhaul links. Since the links may be disconnected, location update procedure may be incorrectly exercised, which results in misrouted calls. This letter proposes an analytic model to derive the misrouting probabilities as functions of the link disconnection time distribution. These equations can be used as the design guideline to select the microwave equipment for the wireless system.
  • Thumbnail Image
    Item type:Item,
    Reducing International Call Costs for Roamer to Roamer Calls
    (2010-10-01)
    Chen, Yuan-Kai
    ;
    Lin, Yi-Bing
    ;
    Liou, Ren-Huang
    ;
    資訊工程學系
    ;
    Department of Computer Science
    Existing mobile telecom operators allow subscribers to receive mobile phone services when they roam in other countries. However, call setup to an international roaming subscriber is indirectly routed through the home network of the subscriber, which results in the usage of two expensive international telephone trunks. In this paper, we propose a plug-in roaming gateway to avoid the international trunk connections. Our solution is especially attractive when both call parties are roamers.
  • Thumbnail Image
    Item type:Item,
    Reducing Signaling Overhead for Femtocell/Macrocell Networks
    (2013-08-01)
    Fu, Huai-Lei
    ;
    Lin, Phone
    ;
    Lin, Yi-Bing
    ;
    資訊工程學系
    ;
    Department of Computer Science
    Femtocell technology has been proposed to offload user data traffic from the macrocell to the femtocell and extend the limited coverage of the macrocell in mobile communications networks. In existing commercial femtocell/macrocell networks, a widely accepted solution to configure the location areas (LAs) is to partition the femtocells overlapped with a macrocell into small groups and to assign each group with a unique LA ID different from that of the macrocell. Such configuration can reduce the paging cost in the mobility management, but increases registration signaling overhead due to discontinuous coverage of femtocells. To reduce signaling overhead in the femtocell/macrocell network, we propose a delay registration (DR) algorithm that postpones the registration until the delay timer expires when the mobile station (MS) moves into the overlapped femtocell. Analytical models and simulation experiments are proposed to investigate the performance of the DR algorithm. Our analytical models are generally enough to accommodate various MS mobility behaviors. Our study can provide guidelines for the operators to set up a delay timer to reduce signaling overhead while sustaining the traffic offloading capability of the femtocell.
  • Thumbnail Image
    Item type:Item,
    Predicting Human Movement Based on Telecom's Handoff in Mobile Networks
    (2013-06-01)
    Lin, Yi-Bing
    ;
    Huang-Fu, Chien-Chun
    ;
    Alrajeh, Nabil
    ;
    資訊工程學系
    ;
    Department of Computer Science
    Investigating human movement behavior is important for studying issues such as prediction of vehicle traffic and spread of contagious diseases. Since mobile telecom network can efficiently monitor the movement of mobile users, the telecom's mobility management is an ideal mechanism for studying human movement issues. The problem can be abstracted as follows: What is the probability that a person at location A will move to location B after T hours. The answer cannot be directly obtained because commercial telecom networks do not exactly trace the movement history of every mobile user. In this paper, we show how to use the standard outputs (handover rates, call arrival rates, call holding time, and call traffic) measured in a mobile telecom network to derive the answer for this problem.
  • Thumbnail Image
    Item type:Item,
    An Investigation on LTE Mobility Management
    (2013-01-01)
    Liou, Ren-Huang
    ;
    Lin, Yi-Bing
    ;
    Tsai, Shang-Chih
    ;
    資訊工程學系
    ;
    Department of Computer Science
    Mobility management in Long Term Evolution (LTE) is different from that in the third generation mobile telecom networks. In LTE, the Mobility Management Entity (MME) is responsible for the mobility management function. The MME is connected to a large number of evolved Node Bs (cells) that are grouped into the Tracking Areas (TAs). The TAs are further grouped into TA Lists (TALs). When a User Equipment (UE) moves out of the current TAL, it reports its new location to the MME. If the LTE network attempts to connect to the UE, the MME asks the cells in the TAL to page the UE. In LTE paging, the MME may sequentially page a cell, the TA of the cell, and/or the TAL of the cell. This paper investigates the performance of LTE paging, and provides the guidelines for the best paging sequence of cells.
  • Thumbnail Image
    Item type:Item,
    Derivation of Cell Residence Times from the Counters of Mobile Telecommunications Switches
    (2011-12-01)
    Lin, Yi-Bing
    ;
    Chang, Ming-Feng
    ;
    Huang-Fu, Chien-Chun
    ;
    資訊工程學系
    ;
    Department of Computer Science
    In mobile telecommunications, the residence times of users at a cell or a location area are an important input parameter for network planning and performance evaluation of a mobile network. However, measurement of cell residence times in a commercially operated mobile network is not trivial, which typically requires tracing the movement of individual users. In this paper, we show how to use the standard counter values (number of handovers and call traffic) measured in a mobile telecommunications network to derive the cell residence times. These counter values can be obtained directly from telecommunications switches. Therefore, we can provide a quick and simple solution to compute cell residence times.
  • Thumbnail Image
    Item type:Item,
    Performance of mobile telecommunications network with overlapping location area configuration
    (2008-03-01)
    Yang, Shun-Ren
    ;
    Lin, Yung-Chun
    ;
    Lin, Yi-Bing
    ;
    資訊工程學系
    ;
    Department of Computer Science
    In a mobile telecommunications network, the location area (LA) of a mobile station (MS) is tracked by an LA update (LAU) mechanism. To reduce the LAU traffic caused by the ping-pong effect, the overlapping LA concept is introduced. In the overlapping LA configuration, an LA selection policy is required to select the new LA at an LAU when the MS enters a new cell covered by multiple LAs. This paper describes four LA selection policies and proposes an analytic model to study the performance of these LA selection policies. Our study provides guidelines to determine an appropriate degree of overlapping among the LAs.
  • Thumbnail Image
    Item type:Item,
    Reducing international roaming call costs with multiple mobile phone numbers
    (2008-07-01)
    Lin, Yi-Bing
    ;
    資訊工程學系
    ;
    Department of Computer Science
    In the existing commercial mobile operation, call setup to an international roaming subscriber is indirectly routed through the home network of the subscriber, which results in the usage of two expensive international-telephone trunks. Through multiple mobile phone number assignment, this letter proposes a novel approach that eliminates the non-necessarily international trunk usage, and effectively reduces the network costs for international roaming calls.