Publications 🔗
The Politecast Primitive for Low-Power Wireless. ACM Computer Communication Review 2011-April. Marcus Lundén and Adam Dunkels.
Inspirational Bits - Towards a Shared Understanding of the Digital Material. CHI 2011. Petra Sundström, Alex Taylor, Katja Grufberg, Niklas Wirström, jordi Solsona and Marcus Lundén.
The LEGA: A Device for Leaving and Finding Tactile Traces. Tangible embedded and Embodied Interaction (TEI) 2011. Jarmo Laaksolahti, Jakob Tholander, Anna Karlsson, Marcus Lundén, Jordi Solsona
Experiential Artifacts as a Design Method for Somaesthetic Service Development. Ubicomp 2011 Workshop paper Petra Sundström, Elsa Vaara and Jordi Solsona, Niklas Wirström, Marcus Lundén, Jarmo Laaksolahti, Annika Waern and Kristina Höök.
Immaterial Materials: Radio as a design material. Tangible embedded and Embodied Interaction (TEI) 2012. Jordi Solsona, Marcus Lundén, Petra Sundström and Jarmo Laaksolahti.
Politecast - A New Communication Primitive for Wireless Sensor Networks. Kungliga Tekniska Högskolan (KTH) - Royal Institute of Technology. 2010 Marcus Lundén. Master thesis, Stockholm.
Kommersialiseringsstöd för innovatörer Stockholm University. 2007. Marcus Lundén. BSSc (business administration) thesis. Title in English: “Commercialization support for innovators”
Politecast presentation at CSIRO 2012 (.ppt).
Systems, demos and tech 🔗
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JUMP (BSc degree project 2007); a system to encourage children with disabilities to become more physically active; a 4 sqm dance floor with pressure sensitive cells with LEDs. I designed the hardware (functionality, IC selection, PCB design) and assembled most of the electrical HW (10k+ solder points).
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The Lega system (2009); I designed the network structure and functionality for an indoor localization system and mesh network, some HW design and wrote most of the software for infrastructure nodes, mobile devices and a number of utility nodes. Implemented and evaluated the Politecast primitive for coping with scalability problems, resulting in predictable, low-power behaviour with low latency.
Various small systems using motes: 🔗
RadioSound (Inspirational Bit); Uses two Sky-motes, one in test mode transmitting a carrier wave and a listener measuring the received signal strength (RSS) on that freq. The listener outputs a sound with a pitch proportional to the RSS; used for conveying the physical properties of 2.4 GHz. Idea and implementation by me.
NeTopo (Inspirational Bit); Uses five JCreate-motes set up as a ring or star topology network. They pass a token in the network, indicated by LEDs. This bit visualizes how a data packet will travel in the two different topologies, how link failures are handled, etc. Idea and implementation by me.
Steal the Light; Uses two JCreate-motes, one has 'the light' as indicated by LEDs lit, the other shall try to get close enough to 'steal' it. The light-mote transmits periodic radio beacons (politecasts) at low transmission power setting (ie having short range) and the other listens for these beacons. If heard, a handshake and delivery occurs. Part of the evaluation of the Politecast primitive. Idea and implementation by me.