Performance Comparison of BATMANd and BATMAN-adv

The B.A.T.M.A.N routing algorithm is a routing solution for ad hoc wireless networks. Two of these branches, Batmand and Batman-adv are the most commonly used as the default routing protocols on the Mesh Potato's (MP). The MPs are devices that use VoIP to communicate over the air with each other. These devices are the most common use of the Batman routing protocols and there are no performance tests conducted on the devices. Furthermore, there are no performance tests that can conclusively tell us which of the two branches is the better one and should serve as the first choice on the MPs. This paper highlights the differences between the protocols theoretically and describes a testbed in order to measure performances of the routing protocols

Investigation into BATMANd-0.3.2 Protocol Performance in an Indoor Mesh Potato Testbed

In this paper, we describe the performance of the B.A.T.M.A.N daemon (Batmand) protocol on an indoor Mesh Potato (MP) testbed. The MPs are small devices used for voice communications over the wireless medium but also supports data. The batmand protocol is designed for ad hoc wireless networks. We measure delay, packet loss in order to understand the MPs network performance. The experiments used packets of varying sizes over multiple hops. We analyze the data to see if the network latency for up to four hops is within the recommended boundaries set by ITU-Recommendation G. 114. We also observe the how the network’s performance is affected by the varying packet sizes. Finally the experiments also reveal the common issues found on the wireless medium and also indoor testbeds

Digital Storytelling in Africa

In this paper we examine how digital technology can be used to inspire, record and present oral stories in an African context. In particular we explore how to create technologies that are sympathetic to the cultures of the storytellers, both in the capture of stories and their retelling. Specifically, we look at: inspiring stories in District Six in Cape Town; capturing digital stories from users with low literacy levels and using virtual reality to retell indigenous and personal experience narratives

Designing a VR Interaction Authoring Tool using Constructivist Practices

This paper describes the process of designing an authoring tool for virtual environments, using constructivist principles. The focus of the tool is on helping novice designers without coding experience to conceptualise and visualise the interactions of the virtual environment. According to constructivism, knowledge is constructed by people through interactions with their social and physical environments. Major aspects of this theory are explored, such as multiple representations, reflexivity, exploration, scaffolding and user control. Its practical application to the design of the tool is then described

Does mutual fund size matter? The relationship between size and performance, Review of Asset Pricing

We would like to thank the UAI Foundation for financial support for this project