The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
Copyrights notice
The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
Kertas kerja ini memberi tumpuan kepada aplikasi teknik kerjasama stesen pangkalan (BSC) dalam rangkaian penggunaan semula frekuensi pecahan (FFR). Penggunaan semula kekerapan pecahan dianggap sebagai skim yang menjanjikan untuk mengelakkan masalah gangguan antara sel dalam sistem selular OFDMA, seperti WiMAX, di mana stesen mudah alih tepi (MS) sel bersebelahan menggunakan subsaluran yang berbeza untuk penghantaran berasingan. Walau bagaimanapun, masalah FFR ialah kecekapan spektrum tepi sel (SE) jauh lebih rendah daripada pusat sel. Teknik BSC, di mana BS bersebelahan melakukan penghantaran koperasi untuk satu tepi sel MS dengan saluran yang sama, boleh meningkatkan kelebihan sel SE. Walau bagaimanapun, memandangkan lebih banyak BS menghantar isyarat untuk satu tepi sel MS, penggunaan BSC juga boleh meningkatkan gangguan antara sel, yang mungkin merendahkan prestasi rangkaian. Dalam kertas kerja ini, dengan tumpuan pada pertukaran ini, kami mencadangkan skim BSC adaptif di mana BSC hanya dilakukan untuk MS tepi sel yang boleh mencapai peningkatan kapasiti yang ketara dengan hanya sedikit peningkatan dalam gangguan antara sel. Selain itu, skim pengagihan semula saluran dicadangkan untuk meningkatkan lagi prestasi skim BSC adaptif. Keputusan simulasi mendedahkan bahawa, berbanding dengan skim FFR konvensional, skim yang dicadangkan adalah berkesan untuk meningkatkan prestasi rangkaian FFR.
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Salinan
Liang XU, Koji YAMAMOTO, Hidekazu MURATA, Susumu YOSHIDA, "Cell Edge Capacity Improvement by Using Adaptive Base Station Cooperation in Cellular Networks with Fractional Frequency Reuse" in IEICE TRANSACTIONS on Communications,
vol. E93-B, no. 7, pp. 1912-1918, July 2010, doi: 10.1587/transcom.E93.B.1912.
Abstract: The present paper focuses on the application of the base station cooperation (BSC) technique in fractional frequency reuse (FFR) networks. Fractional frequency reuse is considered to be a promising scheme for avoiding the inter-cell interference problem in OFDMA cellular systems, such as WiMAX, in which the edge mobile stations (MSs) of adjacent cells use different subchannels for separate transmission. However, the problem of FFR is that the cell edge spectral efficiency (SE) is much lower than that of the cell center. The BSC technique, in which adjacent BSs perform cooperative transmission for one cell edge MS with the same channel, may improve the cell edge SE. However, since more BSs transmit signals for one cell edge MS, the use of BSC can also increase the inter-cell interference, which might degrade the network performance. In this paper, with a focus on this tradeoff, we propose an adaptive BSC scheme in which BSC is only performed for the cell edge MSs that can achieve a significant capacity increase with only a slight increase in inter-cell interference. Moreover, a channel reallocation scheme is proposed in order to further improve the performance of the adaptive BSC scheme. The simulation results reveal that, compared to the conventional FFR scheme, the proposed schemes are effective for improving the performance of FFR networks.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.E93.B.1912/_p
Salinan
@ARTICLE{e93-b_7_1912,
author={Liang XU, Koji YAMAMOTO, Hidekazu MURATA, Susumu YOSHIDA, },
journal={IEICE TRANSACTIONS on Communications},
title={Cell Edge Capacity Improvement by Using Adaptive Base Station Cooperation in Cellular Networks with Fractional Frequency Reuse},
year={2010},
volume={E93-B},
number={7},
pages={1912-1918},
abstract={The present paper focuses on the application of the base station cooperation (BSC) technique in fractional frequency reuse (FFR) networks. Fractional frequency reuse is considered to be a promising scheme for avoiding the inter-cell interference problem in OFDMA cellular systems, such as WiMAX, in which the edge mobile stations (MSs) of adjacent cells use different subchannels for separate transmission. However, the problem of FFR is that the cell edge spectral efficiency (SE) is much lower than that of the cell center. The BSC technique, in which adjacent BSs perform cooperative transmission for one cell edge MS with the same channel, may improve the cell edge SE. However, since more BSs transmit signals for one cell edge MS, the use of BSC can also increase the inter-cell interference, which might degrade the network performance. In this paper, with a focus on this tradeoff, we propose an adaptive BSC scheme in which BSC is only performed for the cell edge MSs that can achieve a significant capacity increase with only a slight increase in inter-cell interference. Moreover, a channel reallocation scheme is proposed in order to further improve the performance of the adaptive BSC scheme. The simulation results reveal that, compared to the conventional FFR scheme, the proposed schemes are effective for improving the performance of FFR networks.},
keywords={},
doi={10.1587/transcom.E93.B.1912},
ISSN={1745-1345},
month={July},}
Salinan
TY - JOUR
TI - Cell Edge Capacity Improvement by Using Adaptive Base Station Cooperation in Cellular Networks with Fractional Frequency Reuse
T2 - IEICE TRANSACTIONS on Communications
SP - 1912
EP - 1918
AU - Liang XU
AU - Koji YAMAMOTO
AU - Hidekazu MURATA
AU - Susumu YOSHIDA
PY - 2010
DO - 10.1587/transcom.E93.B.1912
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E93-B
IS - 7
JA - IEICE TRANSACTIONS on Communications
Y1 - July 2010
AB - The present paper focuses on the application of the base station cooperation (BSC) technique in fractional frequency reuse (FFR) networks. Fractional frequency reuse is considered to be a promising scheme for avoiding the inter-cell interference problem in OFDMA cellular systems, such as WiMAX, in which the edge mobile stations (MSs) of adjacent cells use different subchannels for separate transmission. However, the problem of FFR is that the cell edge spectral efficiency (SE) is much lower than that of the cell center. The BSC technique, in which adjacent BSs perform cooperative transmission for one cell edge MS with the same channel, may improve the cell edge SE. However, since more BSs transmit signals for one cell edge MS, the use of BSC can also increase the inter-cell interference, which might degrade the network performance. In this paper, with a focus on this tradeoff, we propose an adaptive BSC scheme in which BSC is only performed for the cell edge MSs that can achieve a significant capacity increase with only a slight increase in inter-cell interference. Moreover, a channel reallocation scheme is proposed in order to further improve the performance of the adaptive BSC scheme. The simulation results reveal that, compared to the conventional FFR scheme, the proposed schemes are effective for improving the performance of FFR networks.
ER -