Browse > Article
http://dx.doi.org/10.3745/KIPSTC.2009.16-C.1.57

Improved ROHC Optimistic Mode for Efficient Utilization of the Resources in Mobile WiMAX  

Kim, Joo-Young (이화여자대학교 컴퓨터공학과)
Woo, Hyun-Je (이화여자대학교 컴퓨터공학과)
Lee, Mee-Jeong (이화여자대학교 컴퓨터정보통신공학과)
Kwon, Jeong-Min (한국전자통신연구원 무선접속표준연구팀)
Publication Information
The KIPS Transactions:PartC / v.16C, no.1, 2009 , pp. 57-64 More about this Journal
Abstract
In order to efficiently provide IP based Wireless Broadband services in Mobile WiMAX, schemes for more efficiently utilizing a limited bandwidth in radio links are needed. Robust Header Compression (ROHC), a standard header compression scheme proposed by IETF, Bi-directional Optimistic (O) mode provides higher compression efficiency and robustness compared with Payload Header Suppression (PHS) which is an optional header compression scheme for mobile WiMAX [1, 2]. However, if consecutive packet losses occur because of a Shadow Region of Mobile WiMAX or bit errors, header decompression failure rate of the ROHC O mode increases due to inconsistency of the compression information between the Compressor and the Decompressor. Therefore, a complementary mechanism is needed. In this paper, we propose an approach for the dynamic adjustment of an optimistic parameter, which has an effect on both the compression efficiency and the robustness, for improving the performance of ROHC O mode. We also analyze the performance of the proposed approach using an OPNET simulator.
Keywords
Optimistic approach; Header compression scheme; Mobile WiMAX;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 우현제, 김주영, 권정민, 이미정, “모바일 와이맥스에서의 효율적인 무선링크 대역폭 활용을 위한 헤더압축기법인 ROHC RTP 프로파일의 성능 분석”, 정보처리학회논문지C 제15-C권 제5호, pp.399-408, 10, 2008   과학기술학회마을   DOI   ScienceOn
2 IEEE Standard 802.16e-2005, “IEEE Standard for Local and metropolitan area networks - Part 16: Air Interface for Fixed Broadband Wireless Access Systems,” February, 2006
3 전수연, 김태현, “모바일 와이맥스의 현황 및 주요 이슈”, 정보통신정책 제 19권 15호 통권 422호, 8, 2007
4 Bormann, C., et., Al., “Robust Header Compression (ROHC): Framework and four profiles: RTP, UDP, ESP, and uncompressed,” IETF RFC 3095, 2001
5 Ana Carolina Minaburo et., Al., “Proposed Behavior for Robust Header Compression over a radio link”, IEEE ICC 2004, pp.4222-4226, June, 2004   DOI
6 IEEE 802.16m-07/080r1, “Draft IEEE 802.16m Evaluation Methodology Document”, June, 2007
7 IEEE Standard 802.16-2004, “IEEE Standard for Local and metropolitan area networks - Part 16: Air Interface for Fixed Broadband Wireless Access Systems,” February, 2005
8 H.J. Woo, J.Y. Kim, M.J. Lee, “Performance analysis of Robust Header Compression over mobile WiMAX,” ICACT 2008, pp.1742-1746, February, 2008   DOI