在保持子载波数恒定的条件下减少循环前缀的长度，并推导出最优分集合并系数。
We reduce the length of cyclic prefix (CP) while the number of carriers remains invariable and the optimal diversity combination coefficients were deduced.
为了提高接收机的性能，一般采用RAKE接收等分集合并措施，这就需要准确的信道估计信息。
In order to improve the performance of receiver, the technology of RAKE diversity receiving is usually adopted, which needs the exact channel estimation information.
为了提高接收机的性能，一般采用RAKE接收等分集合并措施，这就需要准确的信道估计信息。
In order to improve the performance of receiver, the technology of RAKE diversity receiving is usually adopted, which needs the exact channel estimation information.
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