Always on Internet service has become norm and people are able to enjoy anytime, anywhere broadband wireless communication services. With the emergence of smart phone and tablet, wireless network traffic has increased exponentially. Wireless network traffic is expected to continuously increase dramatically as more and more communication capable multimedia devices are expected to be connected to wireless network. In order to offload heavy traffic of cellular network, WiFi has chosen since WiFi normally operates in license exempt bands. 3rd Generation Partnership Program (3GPP) has started study item on 3GPP-WiFi interworking in order to alleviate heavy traffic problem. Since WiFi is independent and different wireless technology, 3GPP needs to be specially designed to provide seamless and high quality interworking with WiFi. Long Term Evolution (LTE)-WiFi interworking has a technical challenge of WiFi network detection. A good solution should provide not only fast WiFi network detection but also battery power saving of mobile phones. In this paper, we propose LTE and WiFi interworking scheme for railroad wireless communication. Our solution is able to provide both expedited WiFi connection establishment and battery power saving by exploiting unique characteristics of railroad communication.
목차
Abstract 1. Introduction 2. Railroad Wireless Communication 2.1. Railroad Wireless Network Configuration 2.2. LTE and WiFi Interworking 3. Expedited WiFi Connection Establishment Scheme for Railroad Wireless Communication 3.1. Railroad Wireless Communication using LTE and WiFi Interworking 3.2. Proposed Protocol Architecture for Railroad Wireless Communication 3.3. Proposed Protocol Procedure for Railroad Wireless Communication 4. Conclusion Acknowledgements References
Kwang Kiun Yoo [ Department of Railroad Electrical and Electronics Engineering, Korea National University of Transportation, Uiwang, Gyeonggi, 437-763 Korea ]
Ronny Yongho Kim [ Department of Railroad Electrical and Electronics Engineering, Korea National University of Transportation, Uiwang, Gyeonggi, 437-763 Korea ]
Corresponding author.
보안공학연구지원센터(IJMUE) [Science & Engineering Research Support Center, Republic of Korea(IJMUE)]
설립연도
2006
분야
공학>컴퓨터학
소개
1. 보안공학에 대한 각종 조사 및 연구
2. 보안공학에 대한 응용기술 연구 및 발표
3. 보안공학에 관한 각종 학술 발표회 및 전시회 개최
4. 보안공학 기술의 상호 협조 및 정보교환
5. 보안공학에 관한 표준화 사업 및 규격의 제정
6. 보안공학에 관한 산학연 협동의 증진
7. 국제적 학술 교류 및 기술 협력
8. 보안공학에 관한 논문지 발간
9. 기타 본 회 목적 달성에 필요한 사업
간행물
간행물명
International Journal of Multimedia and Ubiquitous Engineering
간기
월간
pISSN
1975-0080
수록기간
2008~2016
등재여부
SCOPUS
십진분류
KDC 505DDC 605
이 권호 내 다른 논문 / International Journal of Multimedia and Ubiquitous Engineering Vol.9 No.6