A Peer-to-Peer Bare PC VoIP Application

Abstract

PC computing is a novel approach to computing in which there is no operating system, and applications are provided with direct interfaces to the hardware. Bare PC systems are of particular interest for secure, reliable, and efficient peer-to-peer communication between users in view of their inherent simplicity. In this paper, we first provide a brief overview of bare PC computing and note their advantages for peer-to-peer communication. We then describe a peer-to-peer bare PC VoIP application, and present call quality measurements including packet loss, delay, jitter, and MOS (Mean Opinion Score) from several experiments conducted in our laboratory. The results indicate that call quality achieved with bare PC VoIP systems is better than that of operating system based softphones. They also show that a bare PC is able to sustain larger voice packet sizes with no observable degradation in call quality. I. INTRODUCTION An operating system manages resources and interfaces between the users and the hardware. However, critics claim that today's operating systems are often plagued by buggy code and device drivers making them insecure and unreliable [15]. New generations of operating systems promise to provide enhanced security.