Dynamic prioritized channel assignment for multiple traffic classes in a overlay-cell structure

중첩셀 구조에서 다양한 트래픽을 위한 가변적 채널할당기법

  • 백승학 (삼성전자 ATM 교환연구원) ;
  • 류시훈 (연세대학교 전자공학과) ;
  • 박중신 (연세대학교 전자공학과) ;
  • 이준호 (서울산업대학교 전자공학과) ;
  • 이재용 (연세대학교 전자공학과) ;
  • 이상배 (연세대학교 전자공학과)
  • Published : 1998.07.01

Abstract

In this paper, we have proposed a channel assignment shceme for the multiple traffic class environment where the traffic volume varies with time. Our basic idea is to assign radio channels considering the characteristics of each traffic class and mobile speed and change the number of allocated channels for each traffic class according to vaiation of traffic volume. To evalute the perfomance of our proposed algorithms, we conducted analyical and simulation studies. We derived new call blocking probability and hand-off failure probability of the proposed scheme analytically. The simulatioh results show that our proposed algorithms can grantee GOS of each traffic class and provide a fairness between the new call and the hand-off call.

본 논문에서는 트래픽 양이 변화하는 중첩셀 구조에서 다양한 트래픽을 효율적으로 서비스하기 위한 채널 할당기법을 제안한다. 제안한 기법을 통해, 중첩셀 구조의 장점인 용량은 증가하면서 잦은 핸드오프를 방지할 수 있고, 고정채널할당기법이면서도 동적채널할당기법과 유사한 동작을 하여 각 트래픽의 서비스품질(GOS)허용치를 만족할 수 있다. 제안한 기법과 중첩셀 환경에서 각 트래픽에 일정 수의 보호채널을 가진 고정채널할당기법과 비교.분석한 결과, 제안한 방식의 우수함을 볼 수 있었다.

Keywords

References

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