A Secure Registration Scheme for Femtocell Embedded Networks
Recently, femtocell received a signification interest to improve the indoor coverage and provide better voice and data services. Lots of work has been done to improve the femtocell security, but still there are some issues which need to be addressed. Our
- PDF / 1,777,721 Bytes
- 7 Pages / 439.37 x 666.142 pts Page_size
- 33 Downloads / 207 Views
Abstract Recently, femtocell received a signification interest to improve the indoor coverage and provide better voice and data services. Lots of work has been done to improve the femtocell security, but still there are some issues which need to be addressed. Our contribution to the femtocell security is to protect secure zone (femtocell coverage area within macrocell) from unauthorized (non-CSG) users. In this paper, we propose a secure registration scheme for femtocell embedded network. In this scheme, only Closed Subscriber Group (CSG) users are allowed to access both the femtocell and macrocell services within the secure zone. By prioritizing the femtocell over macrocell within the secure zone, every user will try to camp on femtocell and invoke location registration to the femtocell as the user enters to the femtocell coverage area. If the user is within the allowed users list, the femtocell will allow the user otherwise femtocell will send a reject message to the user and also send the user information to the core network. Keywords Femtocell update Secure zone
Macrocell
Closed subscriber group
Location area
1 Introduction Femtocell is small base station, connected with the service provider network through broadband (DSL, cable modem), it typically designs for home use and office use, they are short range, low cost and low power base stations that provides I. Syed H. Kim (&) University of Incheon, Incheon, Korea e-mail: [email protected] I. Syed e-mail: [email protected]
J. J. (Jong Hyuk) Park et al. (eds.), Multimedia and Ubiquitous Engineering, Lecture Notes in Electrical Engineering 240, DOI: 10.1007/978-94-007-6738-6_13, Ó Springer Science+Business Media Dordrecht(Outside the USA) 2013
103
104
I. Syed and H. Kim
better coverage, better indoor voice and data services [1, 2]. Recent research shows that more than 50 % of voice calls and more than 70 % of data traffic are generated indoors [3]. Femtocell improves indoor coverage and capacity of the cellular providers with very low cost compare to the traditional macrocell base station [4]. The femtocell operates in licensed spectrum and may use the same or different frequency from the macrocell [5]. Recently, femtocells received a significant interest in the telecommunications industry. According to the ABI Research, 5.3 million femtocells will be deployed by end of 2012 [6]. Many of the major issues in femtocell have been studied, especially in security, lots of work has been done on femtocell security [7–9], but still there are some issues which needs to be addressed, especially on embedded networks security. In this paper, we focus on the protection of specific coverage area of femtocell within the macrocell coverage area, we called it secure zone. Our contribution is to protect the secure zone from unauthorized (non-CSG) users. Only authorized users are allowed to access both the femtocell and macrocell services within the secure zone. There are some restrictions in the femtocell network for unauthorized users, when femtocell is
Data Loading...
