Paper Abstract and Keywords |
Presentation |
2011-03-04 11:50
Symbol Synchronization method for Base Station Cooperation MIMO-OFDM in Heterogeneous Network Shinichi Tajima, Naoki Kusashima, Kei Sakaguchi, Kiyomichi Araki (Tokyo Inst. of Tech.), Shoji Kaneko, Yoji Kishi (KDD Lab) RCS2010-306 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
In modern cellular networks, performance degradation of communication
quality at the cell-edge due to inter-cell interference is a serious problem. Base Station Cooperation (BSC) MIMO is anticipated to alleviate this problem by cooperation among adjacent base stations.
However, because of
propagation delay difference between the signals from different base
stations, inter-symbol interference and inter-carrier interference occur even with guard interval in OFDM symbol.In the previous works, it is found that this degradation can be reduced by just controlling FFT timing at the receiver in the case of homogeneous networks. In this paper, we will consider a heterogeneous network where a macro base station and several femto base stations are co-exist. As for the symbol synchronization scheme for heterogeneous network, we will propose transmit timing control at the femto base stations in addition to the previous scheme of FFT timing control at the receiver. The validity of the proposed scheme is confirmed by numerical simulation of network capacity. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
heterogeneous networks / base station cooperation / OFDM / symbol synchronization / transmit timing control / / / |
Reference Info. |
IEICE Tech. Rep., vol. 110, no. 433, RCS2010-306, pp. 337-342, March 2011. |
Paper # |
RCS2010-306 |
Date of Issue |
2011-02-23 (RCS) |
ISSN |
Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 |
Copyright and reproduction |
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RCS2010-306 |
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