Spectral Efficiency Improvement of Fractional Frequency Reuse by Inter-Cell Interference Cancellation on Cooperative Base Station
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概要
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This paper proposes applying our inter-cell interference (ICI) cancellation method to fractional frequency reuse (FFR) and evaluates the resulting spectral efficiency improvement. With our ICI cancellation method based on base station cooperation, the control station generates ICI replica signals by simple linear processing. Moreover, FFR effectively utilizes frequency resources by both allowing users in the cell-center region to access all available sub-channels and increasing the transmission power to users in the cell-edge region. FFR provides the conditions under which the ICI cancellation method works effectively. Computer simulations show that the average spectral efficiency of the proposed method is comparable to that of cooperative MU-MIMO, which can completely remove ICI.
- 2012-06-01
著者
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Sugiyama Takatoshi
NTT Access Network Service Systems Laboratories
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IIZUKA Masataka
NTT Access Network Service Systems Laboratories, NTT Corporation
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OHTA Atsushi
NTT Access Network Service Systems Laboratories, NTT Corporation
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Ohta Atsushi
Ntt Access Network Service Systems Laboratories
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MARUTA Kazuki
NTT Access Network Service Systems Laboratories, NTT Corporation
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Maruta Kazuki
Ntt Access Network Service Systems Laboratories Ntt Corporation
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