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Three void\u2010avoidance schemes are described which use the same void\u2010discovery algorithm. Based on an oriented face routing, the first scheme is used by the boundary nodes to prevent packets from dropping. The second scheme is used by sender nodes located <jats:italic>n<\/jats:italic>\u2010hops away from the void boundary to launch a preventive rerouting. The third scheme tends to protect packets from both the concave zones and the boundaries nodes of voids. Proposed schemes are simple to implement. They save network resources and could be easily associated with existing geographic routing protocols. Simulation results show the efficiency of the proposed approach. Copyright \u00a9 2009 John Wiley &amp; Sons, Ltd.<\/jats:p>","DOI":"10.1002\/dac.1079","type":"journal-article","created":{"date-parts":[[2009,12,1]],"date-time":"2009-12-01T14:28:44Z","timestamp":1259677724000},"page":"945-962","source":"Crossref","is-referenced-by-count":10,"title":["A novel approach for void avoidance in wireless sensor networks"],"prefix":"10.1002","volume":"23","author":[{"given":"Mohamed","family":"Aissani","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Abdelhamid","family":"Mellouk","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Nadjib","family":"Badache","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mouloud","family":"Boumaza","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2010,7,26]]},"reference":[{"key":"e_1_2_1_2_2","doi-asserted-by":"publisher","DOI":"10.1145\/1072989.1072992"},{"key":"e_1_2_1_3_2","doi-asserted-by":"publisher","DOI":"10.1109\/COMST.2007.358971"},{"key":"e_1_2_1_4_2","doi-asserted-by":"crossref","unstructured":"ChiparaO HeZ XingG ChenQ WangX LuC StankovicJA AbdelzaherTF.Real\u2010time power\u2010aware routing in sensor networks. 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