IEEE Communications Surveys & Tutorials
IEEE Communications Surveys & Tutorials > 2011 > 13 > 1 > 27 - 51
IEEE Communications Surveys & Tutorials > 2011 > 13 > 2 > 245 - 257
IEEE Communications Surveys & Tutorials > 2011 > 13 > 2 > 274 - 290
IEEE Communications Surveys & Tutorials > 2011 > 13 > 2 > 258 - 273
IEEE Communications Surveys & Tutorials > 2011 > 13 > 3 > 396 - 428
IEEE Communications Surveys & Tutorials > 2011 > 13 > 4 > 617 - 641