The Journal of Korean Institute of Communications and Information Sciences (한국통신학회논문지)

The Korean Institute of Commucations and Information Sciences (한국통신학회)
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MLKA Scheme Based on Periodic Ranging Code Group for Detecting Abnormal AT in WiBro System

WiBro시스템에서 주기적 레인징 코드를 이용한 다중 레벨 Keep - Alive 알고리즘

  • Published : 2007.06.30
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Abstract

In this paper, we propose a MLKA (Multi-Level Keep-Alive) algorithm based on PRCG (Periodic In this paper, we propose a MLKA (Multi-Level Keep-Alive) algorithm based on PRCG (Periodic Ranging Code Group), in which periodic ranging codes are divided into groups. The AP (Access Point) performs this algorithm when a periodic ranging code arrives at the AP in a WiBro (Wireless Broadband Internet) system. In order to increase the traffic radio bandwidth resource efficiency in this system, we propose the multi-level keep-alive algorithm for finding abnormal AT (Access Terminal). From simulation results, it is verified our proposed MLKA algorithm based on PRCG can provide higher traffic radio resource efficiency compared to message-driven keep-alive algorithms.

최근 초고속의 무선데이터 통신을 지원하기 위한 시스템으로 WiBro (Wireless Broadband) 시스템이 대두 되고있다. 본 논문은 WiBro시스템의 한 셀에서 서비스 중인 단말기의 비정상 상태를 점검하는 다중레벨 keep-alive 방법(MLKA : Multi-Level Keep Alive) 방법을 제안하고 있다. 본 논문에서 제안하는 MLKA방법은 WiBro 시스템에서 주기적인 레인징 코드들을 그룹화 하여 단말의 위치에 따라 시간 오차와 전력 오차를 조정하기 위해서 사용하는 주기적인 레인징 기능을 이용한다. 본 논문에서 제안하는 MLKA 알고리즘은 단말의 비정상 상태를 점검하기 위해서 필요한 keep-alive 메시지 사용을 감소 시킨다. 본 논문에서는 제안된 알고리즘의 우수성을 검증하기 위해서 이론적인 수학적 접근 방법과 시뮬레이션 검증 방법을 사용 하였고, 시뮬레이션 결과로부터 기존의 메시지 기반 keep-alive 방법보다 keep-alive 메시지 사용을 줄일 수 있다. 그러므로 본 논문에서 제안하는 MLKA 알고리즘은 제어 메시지 사용을 감소 시키므로 WiBro 시스템의 트래픽 성능을 증가 시킨다.

Keywords

References

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