Cross Layer 기반의 4세대 이동통신망 구조와 QoS 모델
Cross Layer Based 4G Network Architecture and QoS Model
0
조회
0
다운로드
0
인용
0
참고문헌
키워드
초록
최근 4세대 이동통신에 대한 논의가 활발해지면서 Cross Layer에 대한 연구가 증가하고 있다. 기본적으로 All-IP 망에 바탕을 두기로 하였지만 기존의 Cross Layer 연구는 MAC과 PHY 간의 협력 모델에 초점을 맞추고 있으며 IP 계층까지의 연동에 대한 연구는 활발하지 않은 편이다. 본 논문에서는 1, 2, 3계층을 아우르는 Cross Layer 모델을 바탕으로 4세대 이동통신망을 위한 몇 가지 핵심적인 기술을 제안한다. 우선 All-IP 셀룰러 망 구조를 IP 하부망으로 구성하여 2, 3계층의 핸드오프를 각각 지원하도록 한다. 또한 다중 접속 기술과 셀 구조의 연동을 통한 계층적 망의 구성을 제안한다. 마지막으로 세 계층 간의 단일 QoS 모델을 위한 3-CLQP를 제안하여 네트워크 계층의 IntServ 및 DiffServ와 하위 두 계층과의 자원 관리를 연동하였다. 이러한 Cross Layer 기술은 단일 계층의 기술이 해결하지 못 한 QoS 모델 문제에 대한 새로운 해법 가능성을 제시한다.
Abstract
Nowadays, Cross Layer technologies bring a hot issue since 4th generation (4G) communication systems have begun to be developed. Although they are expected to be based on the All-IP architecture, most research has focused on the cooperation between two underlying layers, i.e., MAC and PHY, and little work has been done for interworking with the network layer. Therefore, this paper deals with some core technologies based on the Cross Layer design for 4G networks. Firstly, we design a structure of an All-IP cellular network by using IP subnet, thereby decoupling layer 2 and layer 3 handoff. Secondly, we propose a new system that combines a multiple access technique with the cell structure. Lastly, we propose a QoS model of 3-CLQP (3-Cross Layer QoS policy) which considers IntServ and DiffServ of the network layer to interwork with MAC-PHY layers for resource management. These Cross Layer technologies shed light on solving the problem of designing QoS model which cannot be tackled properly by a single layer based approach.
참고문헌 (30)
- "QoS support for an all IP systembeyond 3G", 39, pp.64~72
- "IP in wireless networks" (2003), Prentice Hall
- "IP-based next generationwireless networks" (2003), Wiley
- "Beyond 3G: vision, requirements, andenabling technologies", pp.120~124
- "Part16: Air Interface forFixed Broadband Wireless Acces Systems"
- "2.3GHz 휴대인터넷 표준" (2004), 한국정보통신기술협회
- "Data Throughputof CDMA-HDR a High Efficient High Data RatePersonal Communication Wireless System", pp.1854~1858
- "Opportunistic transmission scheduling with resourcesharingconstraints in wireless networks", 19(10), pp.2053~2064
- "Dynamic rate controlalgorithms for HDR throughput optimization", pp.976~985
- "User-level performance of channel-awarescheduling algorithm in wireless data networks", pp.321~331
- "Scheduling over nonstationarywireless channels with finite rate sets", pp.1694~1704
- "''Integrated services in the Internetarchitecture", pp.~1633
- "''An architecture for differentiated services''", pp.~2475
- "''A two-bit differentiated servicesarchitecture for the Internet''", pp.~2638
- "IP mobility support for IPv4"
- "Mobility support in IPv6"
- "Low latency Handoffs in Mobile IPv4"
- "Hierarchical Mobile IPv6 mobility management(HMIPv6)"
- "Fast Handovers for Mobile IPv6"
- "Mobile IPv6 Fast Handovers for 802.11Networks"
- "WCDMA for UMTS" (2000), Wiley
- "''Microcellularcommunication systems with hierarchical macrocelloverlays ''Proceedings of IEEE", 82, pp.1383~1397
- "''A microcell", macrocell cellular architecture for lowandhigh-mobility wireless users '' IEEE Journal onSelected Areas in Communications, aug.1993, pp.11, 885~891
- "Draft Supplement to Part 11:Wireless LAN Medium Access Control (MAC) andPhysical Layer (PHY) Specifications: Medium AccessControl (MAC) Enhancements for Quality of Service(QoS)"
- "Scheduling algorithmsfor a mixture of real-time and non-real-time data inHDR"
- "Downlink Scheduling in CDMA Data Networks"
- "QoS scheduling formultimedia traffic in packet data cellular networks", pp.358~362
- "Scheduling for VoIP service incdma2000 1x EV-DO", pp.1495~1499
- "Linklayer assisted mobile IP fast handoff method overwireless LAN networks"
- "S-MIP: aseamless handoff architecture for mobile IP", pp.1774~1784