An Integrated Architecture for Seamless Soft Handoff in Mobile Ad Hoc Networks

Award Information
Agency:
Department of Defense
Branch
Army
Amount:
$68,681.00
Award Year:
2005
Program:
SBIR
Phase:
Phase I
Contract:
W15P7T-06-C-B604
Award Id:
73980
Agency Tracking Number:
A052-113-0625
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
15400 Calhoun Drive, Suite 400, Rockville, MD, 20855
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
161911532
Principal Investigator:
Hongjun Li
Senior Research Scientist
(301) 294-5275
jli@i-a-i.com
Business Contact:
Mark James
Contracts and Proposals Manager
(301) 294-5221
mjames@i-a-i.com
Research Institute:
n/a
Abstract
We present an integrated architecture for seamless soft handoff in mobile ad hoc networks, where various managers residing on multiple layers are proposed to handle handoff issues in a cross-layer and cooperative manner. At the link adaptation layer, the virtual interface provides link transparency to the upper layers and session management is handled at the interface manager. The device and system monitor reports information about the wireless interfaces, and the policy manager incorporates various aspects of factors for comparing interfaces. The handoff is optimized to execute policy-based decisions to keep network traffic delay and traffic congestion to a minimum. At the network layer, essentially most IP-based ad hoc routing protocols can be accommodated, and the architecture can naturally host QoS protocols, like Differentiated Services with admission control. In particular, we present our hybrid Mobile Agent Routing (MAR) protocol that possesses such desirable behaviors and supports various traffic types. At the transport layer, the transport manager is instructed by the interface manager to adapt the transmission rate according to the new wireless link. Finally at the application layer, the security manager handles various aspects of security concerns, including defense against man-in-the-middle attacks.

* information listed above is at the time of submission.

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