Abstract
Recently, the femtocell has been proposed to offload the traffic from the macrocell. In femto/macrocell networks, a location management should be supported to keep track of the current location of a mobile node (MN). Since the conventional mobility management scheme of femto/macrocell networks does not consider mobility pattern of the MN, unnecessary location updates occur. Specifically, when the MN moves along the contour of the femtocell coverage, the MN frequently executes location update which causes high location update cost. To address this problem, we propose a mobility-aware location management (MALM) scheme that the MN does not execute location update in femtocells where the MN stops by while conducting location update at the specific locations expected that the MN stays for a long time. Then, to optimize MALM, a Markov decision process (MDP) problem is formulated and the optimal policy is determined. Evaluation results demonstrate that MALM with the optimal policy can reduce the number of location updates and provide sufficient offloading effect.
| Original language | English |
|---|---|
| Title of host publication | International Conference on Ubiquitous and Future Networks, ICUFN |
| Publisher | IEEE Computer Society |
| Pages | 191-195 |
| Number of pages | 5 |
| Volume | 2015-August |
| ISBN (Print) | 9781479989935 |
| DOIs | |
| Publication status | Published - 2015 Aug 7 |
| Event | 7th International Conference on Ubiquitous and Future Networks, ICUFN 2015 - Sapporo, Japan Duration: 2015 Jul 7 → 2015 Jul 10 |
Other
| Other | 7th International Conference on Ubiquitous and Future Networks, ICUFN 2015 |
|---|---|
| Country | Japan |
| City | Sapporo |
| Period | 15/7/7 → 15/7/10 |
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Keywords
- femtocell
- Location management
- Markov decision process (MDP)
- mobility management
- offloading
ASJC Scopus subject areas
- Computer Networks and Communications
- Computer Science Applications
- Hardware and Architecture
Cite this
Mobility-aware location management scheme in femto/macrocell networks. / Ko, Haneul; Lee, Jaewook; Pack, Sangheon.
International Conference on Ubiquitous and Future Networks, ICUFN. Vol. 2015-August IEEE Computer Society, 2015. p. 191-195 7182532.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Mobility-aware location management scheme in femto/macrocell networks
AU - Ko, Haneul
AU - Lee, Jaewook
AU - Pack, Sangheon
PY - 2015/8/7
Y1 - 2015/8/7
N2 - Recently, the femtocell has been proposed to offload the traffic from the macrocell. In femto/macrocell networks, a location management should be supported to keep track of the current location of a mobile node (MN). Since the conventional mobility management scheme of femto/macrocell networks does not consider mobility pattern of the MN, unnecessary location updates occur. Specifically, when the MN moves along the contour of the femtocell coverage, the MN frequently executes location update which causes high location update cost. To address this problem, we propose a mobility-aware location management (MALM) scheme that the MN does not execute location update in femtocells where the MN stops by while conducting location update at the specific locations expected that the MN stays for a long time. Then, to optimize MALM, a Markov decision process (MDP) problem is formulated and the optimal policy is determined. Evaluation results demonstrate that MALM with the optimal policy can reduce the number of location updates and provide sufficient offloading effect.
AB - Recently, the femtocell has been proposed to offload the traffic from the macrocell. In femto/macrocell networks, a location management should be supported to keep track of the current location of a mobile node (MN). Since the conventional mobility management scheme of femto/macrocell networks does not consider mobility pattern of the MN, unnecessary location updates occur. Specifically, when the MN moves along the contour of the femtocell coverage, the MN frequently executes location update which causes high location update cost. To address this problem, we propose a mobility-aware location management (MALM) scheme that the MN does not execute location update in femtocells where the MN stops by while conducting location update at the specific locations expected that the MN stays for a long time. Then, to optimize MALM, a Markov decision process (MDP) problem is formulated and the optimal policy is determined. Evaluation results demonstrate that MALM with the optimal policy can reduce the number of location updates and provide sufficient offloading effect.
KW - femtocell
KW - Location management
KW - Markov decision process (MDP)
KW - mobility management
KW - offloading
UR - http://www.scopus.com/inward/record.url?scp=84944672502&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84944672502&partnerID=8YFLogxK
U2 - 10.1109/ICUFN.2015.7182532
DO - 10.1109/ICUFN.2015.7182532
M3 - Conference contribution
AN - SCOPUS:84944672502
SN - 9781479989935
VL - 2015-August
SP - 191
EP - 195
BT - International Conference on Ubiquitous and Future Networks, ICUFN
PB - IEEE Computer Society
ER -