• Title/Summary/Keyword: cdma2000 1xEV-DO

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Design and Implementation of the CDMA2000 1x EV-DO Security Layer to which applies 3GPP2 C.S0024-A v.2.0 Standard (3GPP2 C.S0024-A v.2.0 표준을 적용한 CDMA2000 1x EV-DO 보안 계층 설계 및 구현)

  • Yang, Jong-Won;Cho, Jin-Man;Lee, Tae-Hoon;Seo, Chang-Ho
    • Journal of the Korea Institute of Information Security & Cryptology
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    • v.18 no.1
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    • pp.59-65
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    • 2008
  • In security layer in the CDMA2000 1x EV-DO, a standard - C.S0024-a v2.0 is being accomplished under the project of 3GPP2(3rd Generation Partnership Project2). Therefore, a security device is needed to implement the security layer which is defined on the standard document for data transfer security between AT(Access Terminal) and AN(Access Network) on CDMA2000 1x EV-DO environment. This paper realizes the security layer system that can make safe and fast transfer of data between AT and AN. It could be applied to various platform environments by designing and implementing the Security Layer in the CDMA2000 1x EV-DO Security Layer to which applies C.S0024-A v2.0 of 3GPP2.

cdma2000 1xEV-DO의 시큐리티 고찰

  • 신상욱;류희수;정교일
    • Review of KIISC
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    • v.12 no.6
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    • pp.81-92
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    • 2002
  • cdma2000 1xEV(Evolution)-DO(Data Only)는 기존의 IS-2000 무선 프로토콜과 달리 패킷 데이터 서비스를 위한 전용 프로토콜로, 최대 2.4Mbps의 전송 속도를 제공한다. cdma2000 1xEV-DO는 이전의 프로토콜과 단리 무선 인터페이스 계층 구조에 따로 분리된 시큐리티 계층(security layer)을 가지며, 이 시큐리티 계층에서 패킷 데이터 서비스를 위한 인증과 암호화 서비스를 제공한다. 본 고에서는 패깃 데이터 서비스를 위한 전용 프로토콜인 chma2000 1xEV-DO의 시큐리티 계층의 4가지 프로토콜인 키 교환 프로토콜, 인증 프로토콜, 암호화 프로토롤, 시큐리티 프로토콜을 분석한다.

Design and Implementation of the Cdma2000 EV-DO security layer supporting Hardware using FPGA (FPGA를 이용한 Cdma2000 EV-DO 시큐리티 지원 하드웨어 설계 및 구현)

  • Kwon, Hwan-Woo;Lee, Ki-Man;Yang, Jong-Won;Seo, Chang-Ho;Ha, Kyung-Ju
    • Journal of the Korea Institute of Information Security & Cryptology
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    • v.18 no.2
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    • pp.65-73
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    • 2008
  • Security layer of the Cdma2000 1x EV-DO is currently completing standard (C.S0024-A v2.0). Accordingly, a hardware security devices, that allows to implementation requirement of the security layer described in standard document, is required to apply security function about data transferred between AT and AN of then Cdma2000 1x EV-DO environment. This paper represents design of hardware device providing EV-DO security with simulation of the security layer protocol via the FPGA platform. The SHA-1 hash algorithm for certification and service of packet data, and the AES, SEED, ARIA algorithms for data encryption are equip in this device. And paper represents implementation of hardware that applies optionally certification and encryption function after executing key-switch using key-switching algorithm.

The Error-Resilient Transmission of MPEG-4 Patient Video using UDP Over CDMA2000 1xEV-DO Network (CDMA2000 1xEV-DO망에서 UDP를 사용한 MPEG-4 환자 영상의 에러에 강인한 전송)

  • Lee Tong-Heon;Yoo Sun-Kook
    • The Transactions of the Korean Institute of Electrical Engineers D
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    • v.54 no.8
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    • pp.510-516
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    • 2005
  • Rapid advances in telecommunication make emergency telemedicine possible that specialist offers medical care to an emergency case in moving vehicle. Although there were many telemedicine projects delivering the image or video of patient over several wireless networks, none of them considered effective solutions for optimizing video transmission over error-prone environments, such like wireless links. To alleviate the effect of channel errors on compressed video bit-stream, this paper analyzed the error resilient features of MPEG-4 standard and measured the quality of transmitted MPEG-4 encoded video over commercially available CDMA2000 1xEV-DO networks, transmitting different IP packet sizes and RM positions. we propose an error resilient transmission methods for emergency telemedicine over real 3G network.

An Enhanced Reverse-link Traffic Control and its Performance Analysis in cdma2000 1xEV-DO Systems (cdma2000 1xEV-DO 시스템에서 개선된 역방향 트래픽 제어와 성능 분석)

  • Yeo, Woon-Young
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.33 no.9A
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    • pp.891-899
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    • 2008
  • The cdma2000 1xEV-DO system controls the data rates of mobile terminals based on a binary overload indicator from the base station and a simple probabilistic model. However, this traffic control scheme has difficulty in controlling the reverse-link traffic load effectively and in guaranteeing a stable operation of the reverse link because each mobile terminal determines the next data rate autonomously. This paper proposes a new trafRc control scheme to improve the system stability, and analyzes the proposed scheme by modeling it as a discrete-time Markov process. The numerical results show that the maximum data rate of the proposed scheme is much higher than that of the conventional one. Moreover, the proposed scheme does not modify the standard physical channel structure, so it is compatible to the existing 1xEV-DO system.

Efficient mutual authentication and key distribution protocol for cdma2000 packet data service (cdma2000 패킷 데이터 서비스를 위한 효율적인 상호 인증과 키 분배 프로토콜)

  • 신상욱;류희수
    • Journal of the Korea Institute of Information Security & Cryptology
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    • v.13 no.2
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    • pp.107-114
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    • 2003
  • In this paper, we propose an efficient mutual authentication and key distribution protocol for cdma2000 packet data service which uses Mobile U access method with DIAMETER AAA(Authentication, Authorization and Accounting) infrastructure. The proposed scheme provides an efficient mutual authentication between MN(Mobile Node) and AAAH(home AAA server), and a secure session-key distribution among Mobile If entities. The proposed protocol improves the efficiency of DIAMETER AAA and satisfies the security requirements for authentication and key distribution protocol. Also, the key distributed by the proposed scheme can be used to generate keys for packet data security over 1xEV-DO wireless interface, in order to avoid a session hijacking attack for 1xEV-DO packet data service.

Forward Link Data Service Capacity Considering Data Rate Adaptation in CDMA2000 1X-EVDO Systems (데이터 전송률의 적응성을 고려한 CDMA2000 1X EV-DO 시스템의 순방향 데이터 서비스 용량 분석)

  • Choi, Woo-Yong;Lim, Dong-Gu
    • Journal of Korean Institute of Industrial Engineers
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    • v.37 no.3
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    • pp.229-233
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    • 2011
  • The existing approaches for analyzing the data service capacity of CDMA2000 1X EV-DO (Evolution-Data Only) systems have focused on deriving the maximum number of active customers assuming that the data rates provided to the customers can be determined beforehand. However, we have seen that through real experiment, the data rates actually provided to the customers adaptively change according to the number of active customers. In this paper, we propose new capacity analysis model considering the data rate adaptation. Numerical examples are also presented to obtain the maximum input traffic rates for various values of the length of data burst and the required mean delay bound.

A Wireless MAC Scheduler based on Video Traces for One-to-one Video-on-demand Services in CDMA2000 1xEV-DO (CDMA2000 1xEV-DO 이동통신 망에서 일대일 주문형 비디오 서비스를 위한 비디오 트레이스 기반 무선 MAC 스케줄러)

  • Pyun, Ki-Hyun
    • Journal of KIISE:Information Networking
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    • v.36 no.4
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    • pp.351-359
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    • 2009
  • A wireless MAC scheduler for CDMA2000 IxEV-DO that provides a high level of quality-of-service(QoS) for video-on-demand(VOD) applications while achieving a reasonable level of system throughput is proposed, The proposed scheduler that exists in the MAC layer utilizes the video data information that resides in the application layer such that it improves the QoS for VOD applications. We show by simulations that our approach is better than the previous scheduler which is also based on video traces for VBR videos that have high variability between video frames.

CDMA2000 1X 및 1X EV-DO(HDR) 표준동향

  • 박창수;박진수;홍순호
    • Information and Communications Magazine
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    • v.17 no.8
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    • pp.83-98
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    • 2000
  • 본 논문에서는 cdma2000 1X 및 1XEV HDR의 물리계층 구조와 위의 두 시스템이 TIA/EIA-95 시스템과 비교하여 개선된 점들을 살펴보았다.cdma2000 기술은 무선 인터넷 애플리케이션과 같이 서비스 사업자의 요구에 능동적으로 대처할 수 있는 플랫포옴을 가지고 있으며 그중 하나가 바로 HDR이다. 즉, 기존의 TIA-EIA-95 또는 cdma2000 1X망에 자연스럽게 융화되며, 트래픽이 링크간 비대칭적이고 벌스티한 특성을 가지며 요구되는 지연(delay) 및 QOS가 가변적인 인터넷 패킷 데이터 서비스와 같이 새로운 기능을 추가하는 것이 용이하다. 따라서 cdma2000 1X 와 HDR은 향후 일반화될 IP 서비스를 최적화하는데 있어서도 매우 효율적인 무선접속기술이다.

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Adaptive Error Recovery in cdma2000 1xEV-DO Broadcast and Multicast Networks (cdma2000 1xEV-DO를 위한 모바일 브로드캐스트/멀티캐스트 네트워크에서의 능동적인 에러 교정 방법에 관한 연구)

  • Kang Kyungtae;Park Hosang;Cho Yongwoo;Shin Heonshik
    • Journal of KIISE:Information Networking
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    • v.33 no.1
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    • pp.91-102
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    • 2006
  • We analyze the performance of MAC-layer Reed-Solomon error recovery in the cdma2000 1xEV-DO Broadcast and Multicast Services (BCMCSs) environment, with respect to the size of the ECB (Error Control Block) and the air-channel condition, and establish the relationship between ECB size, error recovery capacity and service latency. From this we propose an adaptive error recovery scheme which adjusts the size of the ECB to reflect the environment of the mobile nodes so as to meet the required service quality (target bit error-rate), while reducing the latency of real-time applications. Extensive simulation results show the effectiveness of our approach compared to the current static scheme. Proposed adaptive schemes achieves near optimal solution with respect to service latency while satisfying the required service quality.