서지주요정보
이동 멀티미디어 통신망에서 핸드오프 보장을 위한 대역폭 예약 기반의 호 수락 제어 방식 = Call admission control scheme based on bandwidth reservation for handoff guarantee in mobile multimedia cellular networks
서명 / 저자 이동 멀티미디어 통신망에서 핸드오프 보장을 위한 대역폭 예약 기반의 호 수락 제어 방식 = Call admission control scheme based on bandwidth reservation for handoff guarantee in mobile multimedia cellular networks / 박준석.
저자명 박준석 ; Park, Jun-Seok
발행사항 [대전 : 한국과학기술원, 1999].
Online Access 원문보기 원문인쇄

소장정보

등록번호

8010280

소장위치/청구기호

학술문화관(문화관) 보존서고

MCS 99048

휴대폰 전송

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이용가능

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반납예정일

등록번호

9006240

소장위치/청구기호

서울 학위논문 서가

MCS 99048 c. 2

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도서상태

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초록정보

Due to the limitation of the radio spectrum, future wireless systems will use micro/pico-cellular architectures in order to provide a higher capacity. Because of the small coverage area of micro/pico-cells, handoff events will occur at a much higher rate as compared to today's macro-cellular systems. Frequent handoff and mobility might result in rapid changes and overloads in the traffic conditions of radio cells. Thus, call admission control functions are required to keep the probability of a congested radio state low. In this paper, we present a call admission control scheme combined handoff queue and bandwidth reservation to minimize the handoff failure probability while preserving high network resource utilization for multimedia communication in mobile multimedia cellular network. Our approach differentiates the new call and the handoff, considers the guaranteed and best effort traffic for multimedia application, and reserves the bandwidth in the neighboring cells allowing queuing of handoff requests. In the proposed call admission control scheme, the total bandwidth of the radio cell is divided into reserved fraction and non-reserved fraction, and the reserved fraction is used exclusively for the handoff. New calls are accepted if some bandwidth is available in non-reserved fraction, otherwise is rejected. Handoffs are accepted if some bandwidth is available in the sum of non-reserved fraction and reserved fraction, otherwise is queued and is accepted or rejected depending on the queuing delay when the bandwidth is available later. For the purpose of evaluating the performance of our approach, we have simulated our scheme and other three generic schemes, and have compared their performances. The other three generic schemes are no control scheme, bandwidth reservation scheme and only handoff queuing scheme. The simulation results show that our approach is more efficient in minimizing the handoff failure probability than other schemes.

서지기타정보

서지기타정보
청구기호 {MCS 99048
형태사항 v, 41 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Jun-Seok Park
지도교수의 한글표기 : 윤현수
지도교수의 영문표기 : Hyun-Soo Yoon
학위논문 학위논문(석사) - 한국과학기술원 : 전산학과,
서지주기 참고문헌 : p. 39-41
주제 호 수락 제어
핸드오프 실패율
대역폭 예약
이동 통신망
멀티미디어
Call admission control
Handoff failure probability
Cellular networks
Multimedia
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