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Table 1 Sample pilot sequences and their mutual coherence which have been achieved by different proposed approaches and comparison to the method in [11]

From: Probability-based pilot allocation for MIMO relay Distributed compressed sensing channel estimation

Alg. SCE EEDA PCE GA
μ 0.2360 0.2439 0.2227 0.2557
N s 1 2 1 2 1 2 1 2
  6 9 31 36 29 31 18 55
  14 22 42 44 47 49 20 61
  33 37 52 71 57 63 36 99
Pilot 40 44 80 87 64 71 44 132
seq. 51 54 92 142 72 110 66 148
  56 59 149 150 115 116 86 160
  62 66 155 186 121 124 116 179
  95 99 187 194 198 200 124 196
  103 105 195 203 207 208 135 203
  112 135 205 210 217 218 145 222
  151 152 215 217 227 228 166 230
  158 212 223 225 236 237 177 238
  219 242 230 233 247 248 185 256
  243 249 237 241 255 257 197 263
  252 257 244 251 278 280 237 277
  276 318 263 291 287 289 252 295
  324 325 292 299 298 308 306 307
  344 349 311 329 317 318 323 331
  354 355 330 335 326 346 348 352
  372 373 349 409 348 355 357 381
  413 420 414 418 357 362 385 419
  430 431 423 426 363 412 421 428
  436 483 429 437 414 434 446 434
  487 493 445 469 439 466 484 447
  502 512 498 500 470 483 490 483