Search results for: . .
IEEE Communications Surveys & Tutorials > 2010 > 12 > 2 > 222 - 248
IEEE Communications Surveys & Tutorials > 2008 > 10 > 4 > 18 - 39
IEEE Communications Surveys & Tutorials > 2010 > 12 > 2 > 222 - 248
IEEE Communications Surveys & Tutorials > 2008 > 10 > 4 > 18 - 39