00642nam a2200217Ia 450000500170000000800410001702000150005804000180007304100080009108200220009910000190012124500850014025000120022526000350023730000240027265000310029665000170032765000330034470000190037770000280039620220924103410.0210716s2005    xx            000 0 und d  a8181283430  cAIMIT LIBRARY  aeng  a621.382 23bBARJ  aBarry, John R.  aDigital communication /cBy John R Barry, Edward A Lee and David G Messerschmitt  a3rd ed.  aNew Delhi :bSpringer ,c2005.  axvi,838p. ;c23 cm.  aPulse amplitude modulation  aEqualization  aMultiple access alternatives  aLee, Edward A.  aMesserschmitt, David G.