@phdthesis{Karnapke2012, author = {Karnapke, Reinhardt}, title = {Unidirectional Links in Wireless Sensor Networks}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:co1-opus-27210}, school = {BTU Cottbus - Senftenberg}, year = {2012}, abstract = {Experiments with wireless sensor networks have shown that unidirectional communication links are quite common. What is even more, they have also shown that the range of a unidirectional link can exceed that of a bidirectional one by far. Still, most of todays routing protocols do not use them, they only eliminate their implications. Those protocols that do use unidirectional links introduce a lot of protocol overhead. One possible conclusion that is often drawn from this fact is that it does not pay to use unidirectional links in a routing protocol. An alternative one is that the overhead produced by the protocols needs to be reduced. This thesis follows the second line of reasoning, and introduces, describes and evaluates five new routing protocols for wireless sensor networks with unidirectional links.}, subject = {Drahtloses Sensorsystem; Sensornetze; Routing; Unidirektionale Verbindungen; Wireless Sensor Networks; Routing; Unidirectional links}, language = {en} }