Date of Award
Master of Science (MS)
Dr. Harlan B. Russell, Committee Chair
Dr. Daniel L. Noneaker
Dr. Kuang-Ching Wang
In mobile ad hoc networks without centralized control distributed transmission scheduling protocols for channel access are of interest. Many scheduling-based MAC protocols have been proposed to provide contention-free transmissions and to guarantee certain levels of performance. However, one of the major drawbacks of these protocols is that once a slot is assigned to a particular node if the node does not have a packet to transmit, then the slot is not utilized. This leads to a poor network performance. In our proposed protocol these assigned but un-utilized slots are recovered by other nodes. We use custom computer simulations to compare our new protocol against two ap-proaches that do not recover wasted slots. The simulation models the performance of the physical and link layers and includes a limited network layer that supports end-to-end for-warding of trafﬁc. Through investigations of random networks with varying densities we conclude that our new approach results in an increase in the capacity of the network.
Bollapragada Subrahmanya, Vikas, "A Protocol to Recover the Unused Time Slot Assignments in Transmission Scheduling Protocols for Channel Access in Ad Hoc Networks" (2016). All Theses. 2487.