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A New Distributed Reservation Multiple Access scheme for the AVPAC Channel


Aeronautical Radio, Inc. has proposed DRMA(Distributed Reservation Multiple Access) for the integration of voice and data on the AVPAC (Aviation VHF Packet Communication) channel, also known internationally as VDL (VHF Data Link). DRMA offers various interesting features; yet it has some limitations. In this report, we evaluate DRMA and extend it to make it more efficient and more suitable to the AVPAC mobile environment. First, we review the PRMA(Packet Reservation Multiple Access) protocol which is related to DRMA in several ways. Then, an improved algorithm that can increase the throughput of DRMA is proposed. We also propose a handoff mechanism for this protocol. Handoffs were not considered previously in Aeronautical Radio, Inc.'s DRMA documents, which were designed only to test the correctness of the mechansim. 1 Introduction A global air/ground communications internet called ATN (Aeronautical Telecommunication Network) is now being planned for the purpose of connecting several a...

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Information & Date

Wireless information networks: architecture, resource management, and mobile data, , January. 1994


Sanjay Singh
Mario Gerla
Steve Friedman