D
David Johnson
Researcher at University of Cape Town
Publications - 71
Citations - 1107
David Johnson is an academic researcher from University of Cape Town. The author has contributed to research in topics: The Internet & Wireless mesh network. The author has an hindex of 16, co-authored 70 publications receiving 1037 citations. Previous affiliations of David Johnson include Council for Scientific and Industrial Research & University of California, Santa Barbara.
Papers
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Simple pragmatic approach to mesh routing using BATMAN
TL;DR: 2nd IFIP International Symposium on Wireless Communications and Information Technology in Developing Countries, CSIR, Pretoria, South Africa, 6-7 October 2008.
Journal ArticleDOI
Comparison of two routing metrics in OLSR on a grid based mesh network
David Johnson,Gerhard P. Hancke +1 more
TL;DR: An experimental comparison of OLSR using the standard hysteresis routing metric and the ETX metric in a 7 by 7 grid of closely spaced Wi-Fi nodes to obtain more realistic results.
Proceedings ArticleDOI
VillageCell: cost effective cellular connectivity in rural areas
TL;DR: Through measuring the call quality metrics and the system capacity under a realistic rural-area network load, it is shown that VillageCell is indeed an attractive solution for rural area voice connectivity.
Proceedings ArticleDOI
Internet usage and performance analysis of a rural wireless network in Macha, Zambia
TL;DR: This work analyses a set of network traces from the Linknet wireless network in Zambia, which provides Internet access to approximately 300 residents of a rural village using a satellite link and a combination of point-to-point links, hotspots and wireless mesh networks.
Proceedings ArticleDOI
Traffic characterization and internet usage in rural Africa
TL;DR: The results reveal that Internet traffic in rural Africa differs significantly from the developed world, and a discussion of new directions in network design that take into account both technical and social factors is concluded.