상세정보
학술대회
Path Centric On-Demand Rate Adaptation for Mobile Ad Hoc Networks
- 저자
- 강세훈, 유찬수, Chita R. Das, Guohong Cao
- 발행일
- 200908
- 출처
- International Conference on Computer Communications and Networks (ICCCN) 2009, pp.1-6
- 협약과제
- 09MR7800, 미래인터넷 인프라를 위한 가상화 지원 프로그래머블 플랫폼 및 핵심원천 기술개발, 함진호
- 초록
- Exploiting the multirate capability in mobile ad hoc networks (MANETs) is more complex than in single-hop WLANs because of the rate-distance and rate-hop count tradeoffs. This paper proposes Path-centric on-demand Rate Adaptation for MANETs (PRAM) protocol. A unique feature that sets PRAM apart from most of previous studies is its path-centric approach. While others focus on finding the best data rate for each link and offering a routing path as a collection of links at their best rates, PRAM finds the best data rate for a sourcedestination pair and then, dynamically adapts it based on path lifetime and other factors. Another distinctive feature of PRAM is that it can be seamlessly incorporated with an on-demand routing protocol. Extensive performance study based on ns-2 has demonstrated that PRAM achieves as much as 71.7% higher packet delivery ratio than fixed-rate cases (6~54Mbps) and as much as 43.2% higher than the multihop version of the wellknown ARF mechanism in a wide range of network scenarios. It is also shown that PRAM is capable of using a mixture of data rates in an adaptive manner. © 2009 IEEE.
- KSP 제안 키워드
- As 4, Demand rate, Mobile Ad-Hoc Networks(MANET), Network scenarios, Network simulator-2(NS2), On-Demand routing protocol, Packet Delivery Ratio, Path lifetime, Rate adaptation, Routing Path, Wide range