Date of Award

8-2018

Document Type

Thesis

Degree Name

Master of Science (MS)

Department

Electrical and Computer Engineering (Holcomb Dept. of)

Committee Member

Dr. Harlan Russell, Committee Chair

Committee Member

Dr. Carl Baum

Committee Member

Dr. Daniel Noneaker

Committee Member

Dr. Jacob Sorber

Abstract

The reallocation of underutilized spectrum becomes increasingly important as available frequency bands continue to diminish. The Citizens Broadband Radio Service (CBRS) presents spectrum-sharing opportunities, but the interference protection it requires for legacy users can cre-ate network performance issues for newer users that look to share the spectrum. To combat these issues, we introduce bridge nodes into the network - dedicated traffic-forwarding nodes that help ease the connectivity issues and bottlenecking caused by legacy node protection protocols. In this thesis, we present the augmented connected dominating set (ACDS) algorithm for selecting bridge nodes from a list of bridge node candidates within a network. Simulation results display the effectiveness of this selection scheme in terms of end-to-end success rate, end-to-end throughput, and end-to-end delay in a variety of network topology scenarios. We show the effectiveness of our algorithm by comparing it to simpler bridge node selection schemes.

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