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Conference Paper
Path-Centric On-Demand Rate Adaptation for Mobile Ad Hoc Networks
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- Authors
- Sae Hoon Kang, Chan Su Yu, Chita R. Das, GuoHong Cao
- Issue Date
- 2009-08
- Citation
- International Conference on Computer Communications and Networks (ICCCN) 2009, pp.1-6
- Language
- English
- Type
- Conference Paper
- Abstract
- 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 Keywords
- 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