4.4 Central Limiting Theorem When MF is used,the precoding matrix F=Hand normalize it, the normalized precoding matrixFfwheref h. The received signal of k-th user can be written as y=Ph/Exn+n=Pheta+m i=1 i≠k 片奇以 11
11 4.4 Central Limiting Theorem When MF is used, the precoding matrix and normalize it, the normalized precoding matrix where F H 1 1 K H H H k k B k k k k i i k i i k K H H k i k k k i k k i i i k y P P x P x n P x P x n h Fx n h f h f h h h h h h The received signal of k-th user can be written as 1 [ , ] F f f K i i i h f h
4.4 Central Limiting Theorem Hence the SINR of k-th user is SINR= P吃h +1 i=1 IeP i≠k The sum rate of the multi-user system is D 1oe,1+5R)=2oe,+ k=1 k=1 +1 i-1 h户 12 i≠k
12 4.4 Central Limiting Theorem Hence the SINR of k-th user is 2 2 2 2 1 1 H k k k i H K k i i k i k P SINR P h h h h h h The sum rate of the multi-user system is 2 2 2 2 2 1 1 2 1 log (1 ) log (1 ) 1 H k k K K k i H k k K k i i k i k P SINR P h h h h h h