Powerline communication (PLC), is becoming a more commonplace method for data transmission, however it is still a very new medium for data transmission, and international standards for powerline communication are still in the process of being developed and established. PLC can provide a means of simplifying the device connectivity to a network by reducing the dedicated wiring needed for communication channels, as well as provide a means for communication between devices that may have previously been impractical. With limited previous research regarding PLC transmission on low voltage direct current (DC) powerlines, and virtually no previous research regarding PLC communication within a computer, the information provided in this thesis begins to take on significant importance to help lead to further advancements in the use of this communication method within a computer. The objective of this thesis is to discuss the feasibility and design theory for developing a low-cost sensor communication network within a desktop personal computer (PC), utilizing the preexisting powerline architecture. First, the channel characterization of the computer powerline structure is presented and discussed. From this channel characterization, the optimum frequency range for the sensor network is selected. A modulation scheme and demodulation scheme are then discussed and simulated. Finally, the results of the simulation are discussed and a simple circuit implementation for the sensor network is realized.