Journal of the Korea Institute of Information and Communication Engineering (한국정보통신학회논문지)

The Korea Institute of Information and Commucation Engineering (한국정보통신학회)
권호 표지

Multimedia Ad Hoc Wireless LAMs with Distributed Channel Allocation Based on OFDM-CDMA

OFDM-CDMA에 기반을 둔 분산 채널 할당 구조를 갖는 멀티미디어 Ad Hoc 무선 LAM에 관한 연구

  • 양현호 (군산대학교 전자정보공학부)
  • Published : 2005.08.01
Download PDF
⟨ Previous Next ⟩

Abstract

We propose a new resource management scheme, Distributed Channel Allocation Protocol (DCAP), for multimedia Ad Hoc Wireless LANs (AWLANS). This scheme implements a Qualify-of-Service (QoS) providing distributed resource management on the Orthogonal Frequency Division Multiplexing-Code Division Multiple Access (OFDM-CDMA) channel architecture. According to the performance evaluation results for MPEG traffic sources, DCAP can be a good choice of resource management scheme for AWLANs supporting multimedia services on the Broadband Wireless Access(BWA)-type physical layer.

본 논문에서는 멀티미디어 Ad Hoc 무선 LAM(AWLAN)을 위한 새로운 자원 관리 방안으로 분산채널 할당 프로토롤(Distributed Channel Allocation Protocol, DCAP)을 제안한다 이 방안은 QoS (Quality-of-Service)를 보장하는 분산적 자원 관리를 OFDM-CDMA(Orthogonal Frequency Division Multiplexing-Code Division Multiple Access) 채널 구조 위에 구현한 것이다. MPEG 트래픽에 대한 성능평가 결과 DCAP는 광대역 무선 접근(Broadband Wireless Access, BWA) 형 물리구조 기반에서의 멀티미디어 서비스를 지원하는 AWLAN을 위한 좋은 자원 관리 방안임이 판명되었다.

Keywords

References

  1. S. Hara and R. Prasad, 'Overview of multicarrier CDMA,' IEEE Commun. Mag., Dec. 1997, pp. 126-133
  2. H. Rohling, K. Bruninghaus, and R. Grunheid, 'Comparison of multiple access schemes for an OFDM downlink system,' in Multi-Carrier Spread Spectrum, K. Fazel and G. P. Fettweis, Eds. Norwell, MA: Kluwer Academic, 1997, pp. 23-30
  3. S. Kaiser and K. Fazel, 'Spread spectrum multi-carrier multiple-access system for mobile communications,' in Multi-Carrier Spread Spectrum, K. Fazel and G. P. Fettweis, Eds. Norwell, MA: Kluwer Academic, 1997, pp. 49-56
  4. F. Cuomo, A. Baiocchi and R. Cautelier, 'A MAC Protocol for a Wireless LAN Based on OFDM-CDMA,' IEEE Communication Magazine, Sep. 2000, pp.152-159
  5. A. Baiocchi, F. Cuomo and S. Bolognesi, 'IP QoS Delivery in a Broadband Wireless Local Loop: MAC Protocol Definition and Performance Evaluation,' IEEE JSAC, Sep. 2000, 18 (9), pp.1608-1622
  6. S. Lal and E.S. Sousa, 'Distributed Resource Allocation for DS-CDMA Based Multimedia ad hoc Wireless LAN's,' IEEE JSAC, Oct. 1991, 9 (8), pp.1265-1279
  7. B. J. Choi, E. L. Kuan and L. Hanzo, 'Crest-Factor Study of MC-CDMA and OFDM,' IEEE VCT, Amsterdam, The Netherlands, 1999, pp.233-237
  8. O. Rose, 'Statistical properties of MPEG video traffic and their impact on traffic modeling in ATM systems,' Proc. 20th Annu. Conf. Local Computer Networks, Minneapolis, Oct. 15-18, 1995